Rapid clamping device for steering engine test

Abstract

The invention discloses a quick clamping device for testing a steering engine, and belongs to the field of testing fixtures, and the quick clamping device is characterized in that at least one wedge-caulking assembly is arranged in two clamping assemblies of a bracket, and a base and a cover plate in the wedge-caulking assembly are correspondingly arranged, a clamping block is matched with a wedge-shaped surface of a wedge block, and a fastening connecting piece is arranged corresponding to the clamping block; accurate control of the clamping block in the process of facing one side of the to-be-tested steering engine or being far away from one side of the to-be-tested steering engine can be achieved, locking of the clamping block after clamping one side of the to-be-tested steering engine is accurately achieved, and then rapid and reliable clamping of the to-be-tested steering engine on the support before testing is achieved. The rapid clamping device is compact in structure, convenient to control and capable of rapidly and accurately clamping the two side wall faces of the to-be-tested steering engine on the support, the fixing reliability of the to-be-tested steering engine on the support during testing is guaranteed, the fixing process of the steering engine on the support before testing is simplified, and the testing efficiency is improved. And thus, the accuracy of subsequent steering engine testing and the clamping efficiency of the steering engine are improved.

Description

Technical Field

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

[0002] The servo is an important part of aircraft, ships and other equipment, and its operating quality often directly affects the reliability of the equipment. Therefore, before delivery, the servo often needs to be tested for elastic loading, inertia simulation, etc. to ensure that the reliability and performance of the servo meet the needs of actual applications.

[0003] In the existing test methods, it is common to use the mounting holes or threaded holes on the servo body to fix the servo before the test, and fix the servo to the bracket with screws. Among them, in the case of fixing with mounting holes, a manual wrench or an 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; and in the case of fixing with the threaded holes on the servo body, generally from the back of the bracket for installing the servo, screws are screwed into the threaded holes on the servo body through the holes on the bracket, thereby fixing the servo. Although both situations can achieve the fixation of the servo to a certain extent, due to the requirements of the test, parts such as an inertia plate are usually provided on the back of the bracket, and the space on the back of the bracket is small, and the use of electric screwdrivers is limited. 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 view of one or more of the above defects or improvement needs in the prior art, the present invention provides a quick clamping device for steering gear testing, which can quickly and reliably fix the steering gear on a bracket before the steering gear testing, thereby ensuring the efficiency and reliability of clamping and fixing during the steering gear 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 a steering gear to be tested and clamping assemblies disposed 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 arranged 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, a receiving groove is provided on one end surface of the base, and the receiving groove runs 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 comprises a clamping block and a wedge block which are tightly arranged with side walls in the first direction; the clamping block is arranged on one side of the receiving groove close to another clamping component, and both side walls of the clamping block and the wedge block which are tightly arranged with each other are wedge-shaped surfaces relative to the first direction; and an elongated hole is provided 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, 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 one side of the servo to be tested on the bracket; and A fastening connection hole is formed through the clamping block, and a first waist-shaped hole extending along 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.

[0006] 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; 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. As a further improvement of the present invention, the limiting groove extends along the first direction and passes through the two 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; 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.

[0007] 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.

[0008] 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; 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.

[0009] 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.

[0010] 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 away from the clamping block.

[0011] 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.

[0012] As a further improvement of the present invention, the inclination angle of the wedge surface relative to the first direction is 80°~85°.

[0013] 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; and / or The elongated hole is an elongated square hole, and the handle is a square columnar structure.

[0014] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0015] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects: (1) The quick clamping device for testing a steering gear of the present invention is characterized in that at least one wedging assembly is arranged in two clamping assemblies of a bracket, and by using the corresponding arrangement of a base and a cover plate in the wedging assembly, the wedge-shaped surfaces of the clamping block and the wedge block are matched, and the fastening connectors arranged 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 steering gear to be tested, and the clamping block can be accurately locked after clamping one side of the steering gear to be tested, thereby achieving rapid and reliable clamping of the steering gear to be tested on the bracket before testing, ensuring the efficiency and reliability of clamping the steering gear to be tested on the bracket, simplifying the fixing process of the steering gear to be tested on the bracket, and improving the reliability of subsequent test results of the steering gear to be tested.

[0016] (2) The quick clamping device for the test of the steering gear of the present invention is provided with two wedge-locking assemblies on both sides of the bracket in a mirror-image manner. The two wedge-locking assemblies can be controlled to quickly achieve the clamping and fixing of both sides of the steering gear to be tested. While simplifying the clamping and fixing form of the clamping device, the efficiency and reliability of the clamping and fixing before the test of the steering gear to be tested are fully guaranteed, thereby indirectly ensuring the accuracy of the subsequent test results.

[0017] (3) The quick clamping device for the test of the servo gear of the present invention has a limit groove on the clamping block and a limit block arranged in a targeted manner, and utilizes the displacement movement of the limit block to realize the axial limit of the servo gear after the clamping block clamps the side wall surface of the servo gear, thereby effectively avoiding the lateral displacement and axial displacement of the servo gear during the test process, further improving the accuracy of the clamping test of the servo gear to be tested, reducing the error caused by the axial displacement of the servo gear during the test process, and fully ensuring the accuracy of the test result.

[0018] (4) The quick clamping device for the steering gear test of the present invention has a compact structure and is easy to control. It can quickly and accurately clamp the two side walls of the steering gear to be tested on the bracket, thereby ensuring the reliability of the fixing of the steering gear to be tested on the bracket during the test, simplifying the fixing process of the steering gear on the bracket before the test, and thus improving the accuracy of the subsequent steering gear test and the clamping efficiency of the steering gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. 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 paying creative work.

[0020] 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; 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; Figure 3 is a structural cross-sectional view of a second wedging assembly in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a clamping block of a second wedging assembly in an embodiment of the present invention; Figure 5 Schematic diagram of the limit block structure of the second wedging assembly in an embodiment of the present invention; Figure 6 is a schematic diagram of the base structure of the second wedging assembly in an embodiment of the present invention; Figure 7 is a schematic diagram of the wedge block structure of the second wedging assembly in an embodiment of the present invention; Figure 8 is a schematic diagram of the cover plate structure of the second wedging assembly in an embodiment of the present invention; Fig. 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; Fig.10 It is a schematic diagram of the assembly of the clamping block, the wedge block, the handle, the limit block and the base in the embodiment of the present invention; In all the drawings, the same reference numerals represent the same technical features, specifically: 1. Bracket; 2. First wedging assembly; 3. Second wedging assembly; 4. Servo to be tested; 301, clamping block; 3011, upper top surface; 3012, clamping surface; 3013, accommodation gap; 3014, lower bottom surface; 3015, clamping wedge surface; 3016, limiting groove; 3017, fastening connection hole; 3018, limiting convex part; 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

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain 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 can be combined with each other as long as they do not conflict with each other.

[0022] 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 are 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] Example: See also Figure 1 to Figure 10 In a preferred embodiment of the present invention, the quick clamping device for the steering gear test comprises a bracket 1 with a vertical plate-like structure, and the steering gear 4 to be tested needs to be clamped and fixed on one side of the bracket 1 before the test.

[0027] During actual testing, the bottom of the bracket 1 is connected to the test platform via a number of connectors.

[0028] Specifically, in the preferred embodiment, clamping assemblies are respectively provided on both sides of the bracket 1 plate body. By utilizing the provision of the two clamping assemblies, the servo 4 to be tested can be pressed onto the bracket 1 from both sides, thereby completing the clamping and fixing of the servo 4 to be tested on the bracket 1.

[0029] In actual configuration, the two clamping components can be configured in different forms or in mirror images of each other. Figure 2 A wedging assembly as shown in or a mirror image of one another.

[0030] For example, in Figure 1 In the preferred embodiment shown in , the two clamping assemblies are wedging assemblies that 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.

[0031] At this time, Figure 2 Taking the second wedging assembly 3 shown in FIG. 1 as an example, the structure of the wedging assembly is specifically described.

[0032] For the second wedging component 3 in the preferred embodiment, it includes a base 305 with a receiving groove 3054 on one side, and a cover plate 307 is connected to the grooved side of the base 305, so as to form a space for receiving the wedging component between the cover plate 307 and the base 305.

[0033] 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.

[0034] In a preferred embodiment, the two wedge-tightening assemblies press the side wall surface of the flange end plate 401 of the steering gear 4 to be tested. Figure 1 At this time, the flange end plate 401 of the servo to be tested 4 is closely attached to one side wall of the bracket 1 .

[0035] 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 tightly with the side walls 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 tightly with the side walls in the first direction.

[0036] 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.

[0037] 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 closely to 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 receiving groove 3054 along the first direction, or space is reserved for the clamping block 301 to be embedded in the receiving groove 3054 along the first direction.

[0038] In a preferred embodiment, the end faces of the wedge block 306 and the clamping block 301 that abut against each other are both wedge-shaped surfaces, and the inclination angle of the two wedge-shaped surfaces relative to the second direction after the two wedge-shaped surfaces are matched in the base 305 is 5° to 10°, and more preferably 7°. That is, the inclination angle of the two wedge-shaped surfaces relative to the first direction is 80° to 85°, and more preferably 83°. 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 which are 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, and extends along the second direction.

[0039] 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 .

[0040] In actual setting, the limit slot 3016 can be a blind hole or a Figure 4 As shown in , it is a through hole that penetrates the clamping surface 3012 and the clamping wedge surface 3015.

[0041] 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 limitably abuts the axial end surface of the flange end plate 401.

[0042] In actual setting, in order to facilitate the driving of the limit block 303, it is preferred to be bent at the end thereof to provide a protrusion 3034, and the protrusion 3034 further protrudes from the surface of the base 305 or the cover plate 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 .

[0043] When the limiting groove 3016 is a through hole, it preferably extends along the first direction, and a side wall surface of the limiting block 303 away from the protrusion 3034 is a wedge-shaped surface parallel to the clamping wedge surface 3015 , namely, the pushing surface 3033 .

[0044] 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.

[0045] More specifically, the base 305 in the preferred embodiment is as follows Figure 6As shown in the figure, a receiving groove 3054 is provided on one side for connecting the cover plate 307, and 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.

[0046] In actual setting, the upper top surface 3011 of the clamping block 301 cooperates with the upper sliding surface 3053 with a sliding clearance, and the lower bottom surface 3014 cooperates with the lower sliding surface 3056 with a sliding clearance. By limiting the upper and lower sliding surfaces, the clamping block 301 can be accurately guaranteed to move in the first direction.

[0047] 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, which are used to connect the cover 307 and the base 305 through a plurality of fasteners 308. Correspondingly, a plurality of connection holes 3071 are also opened around the cover 307.

[0048] In addition, in order to fix 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 fix the base 305 through a plurality of connecting members.

[0049] 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 in the elongated hole 3072 along the second direction.

[0050] For example, the handle 302 in the preferred embodiment is a square columnar structure, and the elongated hole 3072 is an elongated square hole. Figure 8 as shown in .

[0051] 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 in contact with the side sliding surface 3055 on one side of the accommodating groove 3054 when actually set. Fig.10 as shown in .

[0052] More preferably, corresponding to the setting of the handle 302, a fixing groove 3062 is preferably opened on the wedge block 306, and a plurality of fixing holes 3063 are opened correspondingly, so that the end of the handle 302 can be connected to the fixing groove 3062 through a plurality of connecting members (such as connecting screws) after being inserted into the fixing groove 3062, so as to form a Fig. 9 The structure shown in .

[0053] Furthermore, in order to ensure reliable locking of the clamping block 301 after it is clamped in place, a fastening connector 304 is preferably provided, which passes through the cover plate 307 and is threadedly connected to the fastening connection hole 3017 provided on the clamping block 301. In order to cooperate with the displacement of the clamping block 301 in the first direction, a first waist-shaped hole 3073 is provided on the cover plate 307 corresponding to the fastening connector 304 in the preferred embodiment, so as to ensure 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.

[0054] When the clamping block 301 completes clamping, the end of the fastening connector 304 can be reliably pressed against the end surface of the receiving groove 3054 by twisting, thereby reliably locking the clamping block 301 on the inner wall surface of the cover plate 307 .

[0055] In actual configuration, the fastening connection hole 3017 is preferably opened at the opening position of the limiting groove 3016, that is, the limiting groove 3016 passes through the fastening connection hole 3017, and divides the fastening connection hole 3017 into two sections in the axial direction. At this time, a second waist-shaped hole 3032 with a long axis in the first direction is opened through the limiting block 303, and then the fastening connection member 304 passes through the second waist-shaped hole 3032 and the first waist-shaped hole 3073, and is connected to the fastening connection hole 3017.

[0056] 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 limiting of the flange end plate 401 .

[0057] More preferably, a limiting protrusion 3018 is protrudingly provided at 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 coming out of the accommodating groove 3054. Fig.10 as shown in .

[0058] Through 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, so as to achieve lateral abutment matching or release matching between the clamping block 301 and the servo 4 to be tested.

[0059] It is understandable that in actual settings, both clamping assemblies can be set as wedge-type 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.

[0060] For the quick clamping device including two wedge clamping assemblies that are mirror images of each other in the preferred embodiment, the actual use thereof preferably includes the following process: Before testing, the servo 4 to be tested is vertically mounted on the test shaft (not shown) in the middle of the bracket 1, and the handles 302 of the two wedge-tightening components are held ( Figure 1 The two wedge blocks 306 move in the downward direction and drive the two wedge blocks 306 to move; at this time, the two wedge blocks 306 push the two clamping blocks 301 to move towards each other, and clamp the two side walls of the flange end plate 401 of the servo 4 to be tested along the first direction with the two clamping surfaces 3012 respectively; thereafter, tighten the fastening connectors 304 on the two wedge-tightening components to lock the two clamping blocks 301 in place. At the same time, the two limit blocks 303 are moved towards each other by the two protruding parts 3034, so that the two limit surfaces 3031 are respectively moved to the position opposite to or close to the axial end surface of the flange end plate 401. At this point, the two clamping blocks 301 complete the locking of the servo 4 to be tested in the first direction, and the two limit blocks 303 complete the limit of the servo to be tested in its axial direction.

[0061] After that, the servo can be tested. After the test is completed, hold the two handles 302 and move in opposite directions ( Figure 1 The wedge block 306 releases the locking of the two clamping blocks 301 and releases the locking of the two fastening connectors 304; thereafter, the two clamping blocks 301 are pushed away from each other by the fastening connector 304, and the two limit blocks 303 are pushed away from each other, thereby releasing the clamping of the two clamping blocks 301 on both sides of the servo 4 to be tested, and releasing the axial limit of the two limit blocks 303 on the servo 4 to be tested. Thereafter, the servo can be removed from the bracket 1 after the test is completed.

[0062] The quick clamping device for the steering gear test 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 steering gear to be tested on the bracket, thereby ensuring the reliability of fixing the steering gear to be tested on the bracket during testing, simplifying the fixing process on the bracket before the steering gear test, and thus improving the accuracy of subsequent steering gear testing and the clamping efficiency of the steering gear.

[0063] It will be easily understood by those skilled in the art that the above description is only 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 protection scope of the present invention.

Claims

1. A quick clamping device for steering gear testing, characterized in that: It comprises a bracket for clamping the steering gear to be tested and clamping components arranged 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 arranged 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, a receiving groove is provided on one end surface of the base, and the receiving groove runs 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 comprises a clamping block and a wedge block which are tightly arranged with side walls in the first direction; the clamping block is arranged on one side of the receiving groove close to another clamping component, and both side walls of the clamping block and the wedge block which are tightly arranged with each other are wedge-shaped surfaces relative to the first direction; and an elongated hole is provided 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, 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 one 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 along 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.

2. The quick clamping device for steering gear testing according to claim 1 is characterized in that: 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; 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.

3. The quick clamping device for steering gear testing according to claim 2 is characterized in that: The limiting groove extends along the first direction and passes through the two 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; 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.

4. The quick clamping device for steering gear testing according to claim 3 is 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.

5. The quick clamping device for steering gear testing according to any one of claims 1 to 4, characterized in that: The receiving groove comprises an upper sliding surface and a lower sliding surface which are 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.

6. The quick clamping device for steering gear testing according to claim 5, characterized in that: 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.

7. The quick clamping device for steering gear testing according to claim 5, characterized in that: 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 away from the clamping block.

8. The quick clamping device for steering gear testing according to any one of claims 1 to 4, 6 and 7, characterized in that: The two clamping assemblies include the wedge-tightening assembly and another wedge-tightening assembly which is a mirror image of the wedge-tightening assembly.

9. The quick clamping device for steering gear testing according to any one of claims 1 to 4, 6 and 7, characterized in that: The inclination angle of the wedge surface relative to the first direction is 80°-85°.

10. The quick clamping device for steering gear testing according to any one of claims 1 to 4, 6 and 7, 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.

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