A quick clamping device for servo testing

Abstract

The present invention discloses a quick clamping device for testing a servo, which belongs to the field of test fixtures. By arranging at least one wedging assembly in the two clamping assemblies of a bracket, and utilizing the corresponding arrangement of the base and the cover plate in the wedging assembly, the wedge-shaped surface of the clamping block and the wedge block, and the fastening connector provided on the corresponding clamping block, the clamping block can be accurately controlled in the process of being moved toward or away from the side of the servo to be tested, and the clamping block can be accurately locked after clamping the side of the servo to be tested, thereby achieving rapid and reliable clamping of the servo to be tested on the bracket before testing. The quick clamping device of the present invention has a compact structure and is easy to control. It can quickly and accurately clamp the wall surfaces on both sides of the servo to be tested on the bracket, ensure the reliability of the fixation of the servo to be tested on the bracket during testing, simplify the fixation process on the bracket before testing the servo, and thereby improve the accuracy of subsequent servo testing and the clamping efficiency of the servo.

Description

Technical Field

[0001] The invention belongs to the field of test fixtures, and in particular relates to a quick clamping device for testing a steering gear. Background Art

[0002] Servo gears are crucial components for aircraft, ships, and other equipment, and their operational quality directly impacts the reliability of the equipment. Therefore, pre-delivery testing of servos, including elastic loading and inertia simulation, is often required to ensure their reliability and performance meet the demands of actual applications.

[0003] In existing testing methods, it is common to use the mounting holes or threaded holes on the servo body to complete the fixing of the servo before testing, and to fix the servo to the bracket with screws. Among them, when fixing with mounting holes, a manual wrench or electric screwdriver is usually used to screw the screws through the holes on the body into the threaded holes on the bracket for installing the servo, thereby fixing the servo; while when fixing with the threaded holes on the servo body, screws are generally screwed through the holes on the bracket from the back of the bracket for installing the servo into the threaded holes on the servo body, thereby fixing the servo. Although both situations can achieve the fixing of the servo to a certain extent, due to the requirements of the test, parts such as inertia plates are usually provided on the back of the bracket, and the space on the back of the bracket is small, which limits the use of electric screwdrivers. Often, only a manual wrench can be used to screw in the screws, which is inefficient, time-consuming and labor-intensive. Summary of the Invention

[0004] In response to one or more of the above-mentioned defects or improvement needs in the prior art, the present invention provides a quick clamping device for servo testing, which can quickly and reliably fix the servo to a bracket before the servo testing, thereby ensuring the efficiency and reliability of clamping and fixing during the servo testing process.

[0005] To achieve the above-mentioned object, the present invention provides a quick clamping device for testing a steering gear, comprising a bracket for clamping the steering gear to be tested and clamping assemblies provided on both sides of the bracket along a first direction;

[0006] The two clamping assemblies are used to clamp two sides of the servo to be tested when the servo to be tested is placed on the bracket, and at least one of the clamping assemblies is a wedge-tightening assembly;

[0007] The wedging assembly includes a base connected to the bracket, with a receiving groove formed on one end surface of the base, the receiving groove passing through the side of the base facing the other clamping assembly; a cover plate is connected to the side of the base with the receiving groove, and a wedging component is embedded in the receiving groove; and

[0008] The wedging component includes a clamping block and a wedge block which are tightly attached to the side wall surfaces in the first direction; the clamping block is arranged on a side of the receiving groove close to the other clamping component, and the side wall surfaces of the clamping block and the wedge block which are tightly attached to each other are both wedge-shaped surfaces relative to the first direction; and an elongated hole is opened on the cover plate along the second direction, and a handle is provided in the elongated hole, one end of which is connected to the wedge block and the other end extends out of the elongated hole, and the wedge block can be driven to reciprocate in the second direction by the handle, thereby driving the clamping block to partially extend out of the receiving groove in the first direction and press the side of the servo to be tested on the bracket; and

[0009] A fastening connection hole is provided through the clamping block, and a first waist-shaped hole extending along a first direction is provided on the cover plate; at the same time, a fastening connector is provided with one end protruding from the cover plate and the other end passing through the first waist-shaped hole and threadedly connected to the fastening connection hole. By pressing the end of the fastening connector against the bottom of the accommodating groove, the clamping block can be locked after being clamped in place.

[0010] As a further improvement of the present invention, a limiting groove is provided on a side of the clamping block away from the wedge block, and a limiting block is slidably embedded in the limiting groove;

[0011] The limit block can slide back and forth in the limit groove, and partially extend out of the clamping surface of the clamping block after the clamping block clamps one side of the servo to be tested, and the partially extended end of the limit block is pressed against or facing the axial end face of the servo to be tested.

[0012] As a further improvement of the present invention, the limiting groove extends along the first direction and passes through both side walls of the clamping block, and a side wall of the limiting block close to the wedge block is parallel to the wedge surface;

[0013] and / or

[0014] The limiting groove passes through the fastening connection hole, and a second waist-shaped hole is opened at the end of the limiting block along the first direction, and the end of the fastening connection piece passes through the second waist-shaped hole.

[0015] As a further improvement of the present invention, the end of the limit block away from the wedge block is bent toward the side of the cover plate to form a protrusion, and an accommodating notch is opened on the clamping surface of the clamping block. The protrusion can be embedded in the accommodating notch so that the end of the limit block does not protrude from the clamping surface.

[0016] As a further improvement of the present invention, the accommodating groove includes an upper sliding surface and a lower sliding surface parallel to each other;

[0017] The upper top surface of the clamping block matches the sliding gap of the upper sliding surface, and the lower bottom surface of the clamping block matches the sliding gap of the lower sliding surface.

[0018] As a further improvement of the present invention, a protrusion is provided on the top and / or bottom of the clamping block along a second direction perpendicular to the first direction, and a limiting step is provided in the accommodating groove corresponding to the protrusion, and the limiting step limits the displacement of the protrusion in the first direction.

[0019] As a further improvement of the present invention, the side wall surface of the accommodating groove in the first direction is a side sliding surface, and the side sliding surface matches the sliding gap of the side wall surface of the wedge block on the side away from the clamping block.

[0020] As a further improvement of the present invention, the two clamping assemblies include the wedging assembly and another wedging assembly that is a mirror image of the wedging assembly.

[0021] As a further improvement of the present invention, the inclination angle of the wedge surface relative to the first direction is 80°~85°.

[0022] As a further improvement of the present invention, a fixing groove is provided on one end surface of the wedge block corresponding to the handle, and the end of the handle is fixedly connected to the wedge block after being inserted into the fixing groove;

[0023] and / or

[0024] The elongated hole is an elongated square hole, and the handle is a square columnar structure.

[0025] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0026] In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

[0027] (1) The quick clamping device for testing a servo of the present invention is characterized in that at least one wedging assembly is provided in the two clamping assemblies of the bracket, and by utilizing the corresponding arrangement of the base and the cover plate in the wedging assembly, the wedge-shaped surface of the clamping block and the wedge block, and the fastening connector provided on the corresponding clamping block, the clamping block can be accurately controlled in the process of moving toward or away from the side of the servo to be tested, and the clamping block can be accurately locked after clamping the side of the servo to be tested, thereby achieving rapid and reliable clamping of the servo to be tested on the bracket before testing, ensuring the efficiency and reliability of the clamping of the servo to be tested on the bracket, simplifying the fixing process of the servo to be tested on the bracket, and improving the reliability of the subsequent test results of the servo to be tested.

[0028] (2) The quick clamping device for the servo test in the present invention is provided with two wedge-clamping assemblies on both sides of the bracket in a mirror-image manner. The two wedge-clamping assemblies are controlled to quickly clamp and fix the two sides of the servo to be tested. This simplifies the clamping and fixing form of the clamping device while fully ensuring the efficiency and reliability of the clamping and fixing of the servo to be tested before testing, thereby indirectly ensuring the accuracy of the subsequent test results.

[0029] (3) The quick clamping device for testing the servo in the present invention provides a limit groove on the clamping block and sets the limit block in a targeted manner. The displacement movement of the limit block is used to realize the axial limitation of the servo after the clamping block clamps the side wall of the servo, thereby effectively avoiding the lateral and axial displacement of the servo during the test process, further improving the accuracy of the clamping test of the servo to be tested, reducing the error caused by the axial displacement of the servo during the test, and fully ensuring the accuracy of the test results.

[0030] (4) The quick clamping device for the servo test in the present invention has a compact structure and is easy to control. It can quickly and accurately clamp the walls of the servo to be tested on the bracket, ensuring the reliability of the servo to be tested on the bracket during testing, simplifying the fixing process on the bracket before the servo test, and thus improving the accuracy of subsequent servo testing and the clamping efficiency of the servo. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 1 is a schematic diagram of the overall structure of a quick clamping device for steering gear testing according to an embodiment of the present invention;

[0033] Figure 2 2 is a schematic structural diagram of a second wedging assembly of a quick clamping device according to an embodiment of the present invention;

[0034] Figure 3 is a structural cross-sectional view of the second wedging assembly in an embodiment of the present invention;

[0035] Figure 4 1 is a schematic structural diagram of a clamping block of a second wedging assembly in an embodiment of the present invention;

[0036] Figure 5 1 is a schematic structural diagram of a limiting block of a second wedging assembly in an embodiment of the present invention;

[0037] Figure 6 1 is a schematic diagram of the base structure of the second wedging assembly in an embodiment of the present invention;

[0038] Figure 7 1 is a schematic diagram of the wedge structure of the second wedging assembly in an embodiment of the present invention;

[0039] Figure 8 1 is a schematic diagram of the cover structure of the second wedging assembly in an embodiment of the present invention;

[0040] Figure 9 Schematic diagram of the connection between the wedge block and the handle of the second wedging assembly in an embodiment of the present invention;

[0041] Figure 10 Schematic diagram of the assembly of the clamping block, wedge block, handle, limit block and base in an embodiment of the present invention;

[0042] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0043] 1. Bracket; 2. First wedging assembly; 3. Second wedging assembly; 4. Servo to be tested;

[0044] 301, clamping block; 3011, top surface; 3012, clamping surface; 3013, accommodating notch; 3014, bottom surface; 3015, clamping wedge surface; 3016, limiting groove; 3017, fastening connection hole; 3018, limiting protrusion; 302, handle; 303, limiting block; 3031, limiting surface; 3032, second waist-shaped hole; 3033, pushing surface; 3034, protrusion; 304, fastening connection piece; 305, base; 3051, first Connecting hole; 3052, second connecting hole; 3053, upper sliding surface; 3054, accommodating groove; 3055, side sliding surface; 3056, lower sliding surface; 3057, limiting step; 306, wedge block; 3061, driving wedge surface; 3062, fixing groove; 3063, fixing hole; 3064, sliding side; 307, cover plate; 3071, connecting through hole; 3072, elongated hole; 3073, first waist-shaped hole; 308, fastener; 401, flange end plate. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0046] In the description of the present invention, it should be understood that, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to 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, and do 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 should not be understood as limiting the present invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] Example:

[0051] See also Figures 1 to 10 In a preferred embodiment of the present invention, the quick clamping device for testing a servo includes a bracket 1 having a vertical plate-like structure. The servo 4 to be tested needs to be clamped and fixed on one side of the bracket 1 before testing.

[0052] During actual testing, the bottom of the bracket 1 is connected to the test platform via a number of connectors.

[0053] Specifically, in the preferred embodiment, clamping assemblies are respectively provided on both sides of the bracket 1 plate. By utilizing the arrangement of the two clamping assemblies, the servo to be tested 4 can be pressed onto the bracket 1 from both sides, thereby completing the clamping and fixing of the servo to be tested 4 on the bracket 1.

[0054] In actual setting, the two clamping components can be set in different forms or in mirror images of each other. At the same time, the two clamping components in the preferred embodiment include at least one such as Figure 2 The wedging assembly shown in or a mirror image thereof.

[0055] For example, in Figure 1 In the preferred embodiment shown in , the two clamping assemblies are mirror images of each other, namely a first wedging assembly 2 and a second wedging assembly 3, and the two wedging assemblies are connected to both sides of the bracket 1 along the first direction.

[0056] At this time, Figure 2 Taking the second wedging assembly 3 shown in FIG as an example, the structure of the wedging assembly is described in detail.

[0057] For the second wedging assembly 3 in the preferred embodiment, it includes a base 305 with a accommodating groove 3054 on one side, and a cover plate 307 is connected to the grooved side of the base 305, thereby forming a space for accommodating the wedging component between the cover plate 307 and the base 305.

[0058] Specifically, the receiving groove 3054 in the preferred embodiment passes through the side of the base 305 opposite to the other wedging component, ensuring that the wedging component can be partially extended from the receiving groove 3054 under control, thereby pressing the side wall surface of the servo 4 to be tested.

[0059] In a preferred embodiment, the two wedging assemblies press the side wall surface of the flange end plate 401 of the servo 4 to be tested, such as Figure 1 At this time, the flange end plate 401 of the servo to be tested 4 is tightly attached to one side wall of the bracket 1 .

[0060] In more detail, the wedging component in the preferred embodiment includes a clamping block 301 and a wedge block 306 that are matched and embedded in the accommodating groove 3054. The two are arranged with the side wall surfaces tightly together in the direction of the center line of the two wedging components. This direction is recorded as the first direction, that is, the clamping block 301 and the wedge block 306 are arranged with the side wall surfaces tightly together in the first direction.

[0061] Meanwhile, the vertical direction perpendicular to the first direction is referred to as the second direction, and the wedge block 306 in the preferred embodiment can reciprocate in the second direction. In view of this feature, in actual configuration, the length of the wedge block 306 in the second direction is smaller than the length of the receiving groove 3054 in the second direction, so as to provide sufficient space for the displacement of the wedge block 306 in the second direction.

[0062] At the same time, the side wall surface of the clamping block 301 close to the wedge block 306 is a wedge-shaped surface, that is, the clamping wedge surface 3015, and one side of the wedge block 306 is arranged tightly against the clamping wedge surface 3015. Through the reciprocating motion of the wedge block 306 in the second direction, the clamping block 301 can be pushed out of the accommodating groove 3054 along the first direction, or space is reserved for the clamping block 301 to be embedded in the accommodating groove 3054 along the first direction.

[0063] In a preferred embodiment, the end surfaces of the wedge block 306 and the clamping block 301 that abut against each other are both wedge-shaped surfaces. After the two wedge-shaped surfaces are mated in the base 305, the inclination angle relative to the second direction is 5° to 10°, more preferably 7°. That is, the inclination angle of the two wedge-shaped surfaces relative to the first direction is 80° to 85°, more preferably 83°.

[0064] In detail, the clamping block 301 in the preferred embodiment is as follows Figure 4 As shown in , it includes an upper top surface 3011 and a lower bottom surface 3014 perpendicular to the clamping surface 3012 and parallel to each other, and the clamping surface 3012 is located on the side of the clamping block 301 away from the wedge block 306, which extends along the second direction.

[0065] At the same time, a limiting groove 3016 is provided in the middle of the clamping surface 3012 for corresponding embedding of the limiting block 303 .

[0066] In actual setting, the limit slot 3016 can be a blind hole or a Figure 4 As shown in FIG, it is a through hole that penetrates the clamping surface 3012 and the clamping wedge surface 3015.

[0067] Accordingly, the limiting block 303 in the preferred embodiment is as follows Figure 5 As shown in , it is slidably embedded in the limiting groove 3016 and can partially extend from the limiting groove 3016 when the clamping block 301 presses the side wall surface of the flange end plate 401, and is limited to abut the axial end surface of the flange end plate 401.

[0068] In actual setting, in order to facilitate the driving of the limit block 303, it is preferred to bend a protrusion 3034 at its end, and the protrusion 3034 further protrudes from the surface of the base 305 or the cover 307, such as Figure 3 In a preferred embodiment, the limiting block 303 is in an L-shaped structure, and a limiting surface 3031 is formed on a side thereof away from the protruding portion 3034 .

[0069] In the case where the limiting groove 3016 is a through hole, it preferably extends along the first direction, and the side wall of the limiting block 303 away from the protrusion 3034 is a wedge-shaped surface parallel to the clamping wedge surface 3015, that is, the pushing surface 3033.

[0070] In more detail, in order to achieve the avoidance of the protrusion 3034 at the end of the clamping block 301, it is preferred to provide an accommodating notch 3013 corresponding to the limiting groove 3016 on the clamping surface 3012 of the clamping block 301, so that the protrusion 3034 can be embedded in the accommodating notch 3013 when the wedging assembly is not working, that is, at this time the end of the limiting block 303 does not protrude from the clamping surface 3012.

[0071] More specifically, the base 305 in the preferred embodiment is as follows Figure 6 As shown in , a receiving groove 3054 is provided on one side for connecting the cover plate 307. The receiving groove 3054 has an upper sliding surface 3053 and a lower sliding surface 3056 arranged opposite to each other in the second direction, and a side sliding surface 3055 located on one side in the first direction.

[0072] During actual setting, the upper top surface 3011 of the clamping block 301 is matched with the upper sliding surface 3053 with a sliding clearance, and the lower bottom surface 3014 is matched with the lower sliding surface 3056 with a sliding clearance. By using the limiting of the upper and lower sliding surfaces, the clamping block 301 can be accurately guaranteed to move in the first direction.

[0073] At the same time, in order to achieve the connection between the base 305 and the cover 307, a plurality of first connection holes 3051 are preferably opened around the base 305 for connecting the cover 307 and the base 305 via a plurality of fasteners 308. Correspondingly, a plurality of connection holes 3071 are also opened around the cover 307.

[0074] In addition, in order to achieve the fixation of the base 305 on the bracket 1, it is also preferred to open a plurality of second connection holes 3052 on the base 305, and then complete the fixation of the base 305 through a plurality of connecting parts.

[0075] Furthermore, in order to achieve accurate driving of the wedge block 306 in the accommodating groove 3054, a handle 302 protruding from the cover plate 307 is preferably provided; accordingly, an elongated hole 3072 is opened along the second direction on the cover plate 307, so that the handle 302 can reciprocate along the second direction in the elongated hole 3072.

[0076] For example, the handle 302 in the preferred embodiment is a square columnar structure, and the elongated hole 3072 is an elongated square hole, such as Figure 8 As shown in .

[0077] Furthermore, the wedge block 306 includes a wedge-shaped driving wedge surface 3061, which is tightly fitted with the clamping wedge surface 3015, and a sliding side surface 3064 is provided on the side of the wedge block 306 away from the driving wedge surface 3061. The sliding side surface 3064 is actually fitted with the side sliding surface 3055 on one side of the accommodating groove 3054. Figure 10 As shown in .

[0078] More preferably, corresponding to the arrangement of the handle 302, a fixing groove 3062 is preferably opened on the wedge 306, and a plurality of fixing holes 3063 are opened corresponding thereto, so that the end of the handle 302 can be connected to the fixing groove 3062 by a plurality of connecting members (such as connecting screws) to form a Figure 9 The structure shown in .

[0079] Furthermore, to ensure that the clamping block 301 is securely locked after being clamped in place, a fastening connector 304 is preferably provided, which passes through the cover plate 307 and is threadedly connected to a fastening connection hole 3017 provided in the clamping block 301. To accommodate the displacement of the clamping block 301 in the first direction, a first waist-shaped hole 3073 is provided in the cover plate 307 in the preferred embodiment, corresponding to the fastening connector 304. This ensures that when the clamping block 301 is driven, the fastening connector 304 can move in the first waist-shaped hole 3073 in the first direction.

[0080] When the clamping block 301 completes the clamping, the end of the fastening connector 304 can be tightened against the end surface of the receiving groove 3054 by screwing, thereby reliably locking the clamping block 301 against the inner wall surface of the cover plate 307.

[0081] In actual configuration, the fastening hole 3017 is preferably located at the same location as the limiting groove 3016. That is, the limiting groove 3016 extends through the fastening hole 3017, dividing the fastening hole 3017 into two sections in the axial direction. In this case, a second waist-shaped hole 3032 with its major axis oriented in the first direction is formed through the limiting block 303. The fastening member 304 then passes through the second waist-shaped hole 3032 and the first waist-shaped hole 3073 and connects to the fastening hole 3017.

[0082] By opening the second waist-shaped hole 3032 , after the clamping block 301 completes the clamping, the limiting block 303 can also move back and forth in the first direction relative to the clamping block 301 , thereby completing the axial limitation of the flange end plate 401 .

[0083] More preferably, a limiting protrusion 3018 is protruded from the top and / or bottom of the clamping block 301; correspondingly, a limiting step 3057 is provided at the top and / or bottom of the accommodating groove 3054. By matching the limiting protrusion 3018 with the limiting step 3057, the clamping block 301 can be limited in the first direction to prevent the clamping block 301 from falling out of the accommodating groove 3054. Figure 10 As shown in .

[0084] By the corresponding arrangement of the above-mentioned wedging assembly, the operator can drive the clamping block 301 to reciprocate in the first direction by turning the handle 302, thereby achieving lateral abutment matching or release matching between the clamping block 301 and the servo 4 to be tested.

[0085] It is understandable that in actual settings, both clamping assemblies can be set as wedge-clamping assemblies, or one of them can be alternatively set as another clamping assembly, such as a cylinder clamp, a scissor-type telescopic clamp, etc., as long as the lateral clamping of the servo 4 to be tested can be achieved.

[0086] For the quick clamping device comprising two mirror-image wedge-clamping assemblies in the preferred embodiment, the actual use thereof preferably includes the following process:

[0087] Before testing, install the servo 4 to be tested vertically on the test shaft (not shown) in the middle of the bracket 1, hold the handles 302 of the two wedge-tightening components ( Figure 1 The two wedge blocks 306 are driven to move in opposite directions. The two wedge blocks 306 then push the two clamping blocks 301 toward each other, clamping the two side walls of the flange end plate 401 of the servo 4 to be tested along the first direction with their two clamping surfaces 3012. The fastening connectors 304 on the two wedge assemblies are then tightened to lock the two clamping blocks 301 in place. Simultaneously, the two protrusions 3034 move the two limit blocks 303 toward each other, causing the two limit surfaces 3031 to move to positions opposite to or in close contact with the axial end surfaces of the flange end plate 401. At this point, the two clamping blocks 301 lock the servo 4 to be tested in the first direction, while the two limit blocks 303 limit the servo 4 to be tested in its axial direction.

[0088] After that, the servo can be tested. After the test is completed, hold the two handles 302 and move them in opposite directions ( Figure 1 (the upward movement in the process) releases the wedge block 306 from locking the two clamping blocks 301 and releases the lock on the two fastening connectors 304. The fastening connectors 304 then push the two clamping blocks 301 away from each other, pushing the two limit blocks 303 away from each other. This releases the clamping of the two clamping blocks 301 on both sides of the servo 4 to be tested, and releases the axial restraint of the two limit blocks 303 on the servo 4 to be tested. After testing, the servo can be removed from the bracket 1.

[0089] The quick clamping device for servo testing in the present invention has a compact structure and is easy to control. It can quickly and accurately clamp the wall surfaces on both sides of the servo to be tested on the bracket, ensuring the reliability of the fixation of the servo to be tested on the bracket during testing, simplifying the fixing process of the servo on the bracket before testing, and thus improving the accuracy of subsequent servo testing and the clamping efficiency of the servo.

[0090] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick clamping device for steering gear testing, characterized in that: It comprises a bracket for clamping the servo to be tested and clamping assemblies provided on both sides of the bracket along a first direction; The two clamping assemblies are used to clamp two sides of the servo to be tested when the servo to be tested is placed on the bracket, and at least one of the clamping assemblies is a wedge-tightening assembly; The wedging assembly includes a base connected to the bracket, with a receiving groove formed on one end surface of the base, the receiving groove passing through the side of the base facing the other clamping assembly; a cover plate is connected to the side of the base with the receiving groove, and a wedging component is embedded in the receiving groove; and The wedging component includes a clamping block and a wedge block which are tightly attached to the side wall surfaces in the first direction; the clamping block is arranged on a side of the receiving groove close to the other clamping component, and the side wall surfaces of the clamping block and the wedge block which are tightly attached to each other are both wedge-shaped surfaces relative to the first direction; and an elongated hole is opened on the cover plate along the second direction, and a handle is provided in the elongated hole, one end of which is connected to the wedge block and the other end of which extends out of the elongated hole, so that the wedge block can be driven to reciprocate in the second direction by the handle, thereby driving the clamping block to partially extend out of the receiving groove in the first direction and press the side of the servo to be tested on the bracket; as well as A fastening connection hole is formed through the clamping block, and a first waist-shaped hole extending in a first direction is formed on the cover plate; at the same time, a fastening connector is provided, one end of which protrudes from the cover plate and the other end passes through the first waist-shaped hole and is threadedly connected to the fastening connection hole. By pressing the end of the fastening connector against the bottom of the accommodating groove, the clamping block can be locked after being clamped in place; A limiting groove is provided on a side of the clamping block facing away from the wedge block, and a limiting block is slidably embedded in the limiting groove; the limiting block can slide back and forth in the limiting groove, and partially extends out of the clamping surface of the clamping block after the clamping block clamps one side of the servo to be tested, and the partially extended end of the limiting block is pressed against or facing the axial end face of the servo to be tested.

2. The quick clamping device for steering gear testing according to claim 1, characterized in that: The limiting groove extends along the first direction and passes through the two side walls of the clamping block, and the side wall of the limiting block close to the wedge block is parallel to the wedge surface; and / or The limiting groove passes through the fastening connection hole, and a second waist-shaped hole is opened at the end of the limiting block along the first direction, and the end of the fastening connection piece passes through the second waist-shaped hole.

3. The quick clamping device for steering gear testing according to claim 2, characterized in that: The end of the limit block away from the wedge block is bent toward the cover plate to form a protrusion, and an accommodating notch is opened on the clamping surface of the clamping block. The protrusion can be embedded in the accommodating notch so that the end of the limit block does not protrude from the clamping surface.

4. The quick clamping device for steering gear testing according to any one of claims 1 to 3, characterized in that: The accommodating groove includes an upper sliding surface and a lower sliding surface parallel to each other; The upper top surface of the clamping block matches the sliding gap of the upper sliding surface, and the lower bottom surface of the clamping block matches the sliding gap of the lower sliding surface.

5. The quick clamping device for steering gear testing according to claim 4, characterized in that: The top and / or bottom of the clamping block are provided with a protrusion protruding in a second direction perpendicular to the first direction, and a limiting step is provided in the accommodating groove corresponding to the protrusion, and the limiting step limits the displacement of the protrusion in the first direction.

6. The quick clamping device for steering gear testing according to claim 4, characterized in that: The side wall surface of the accommodating groove located in the first direction is a side sliding surface, and the side sliding surface matches the sliding gap of the side wall surface of the wedge block on the side away from the clamping block.

7. The quick clamping device for steering gear testing according to any one of claims 1 to 3, 5 and 6, characterized in that: The two clamping assemblies include the wedge-tightening assembly and another wedge-tightening assembly that is a mirror image of the wedge-tightening assembly.

8. The quick clamping device for steering gear testing according to any one of claims 1 to 3, 5 and 6, characterized in that: The inclination angle of the wedge surface relative to the first direction is 80°-85°.

9. The quick clamping device for steering gear testing according to any one of claims 1 to 3, 5 and 6, characterized in that: A fixing groove is provided on one end surface of the wedge block corresponding to the handle, and the end of the handle is inserted into the fixing groove and fixedly connected to the wedge block; and / or The elongated hole is an elongated square hole, and the handle is a square columnar structure.

Images