Bushing clamp

Abstract

The utility model relates to a bushing clamp which is used for fixing a bushing and comprises a pressing rod assembly, a clamp assembly and an induction assembly. The pressing rod assembly is provided with an abutting face, and the abutting face is used for abutting against the end face of the bush. The clamp assembly comprises a radial telescopic part and a driving part, the radial telescopic part is located at the lower end of the pressing rod assembly, and the driving part is used for driving the radial telescopic part to stretch out and draw back so as to increase or reduce the acting force between the radial telescopic part and the lining; the induction assembly comprises a movable part and an induction part, the movable part partially protrudes out of the abutting face, when the lining abuts against the abutting face, the movable part can be driven to move to a preset position, and the induction part is in communication connection with the driving part. And the control part is used for controlling the driving part to act when sensing that the movable part moves to a preset position. The lining positioning device has the advantage that the lining positioning precision is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of engine component assembly, and in particular to a bushing clamp. Background Technology

[0002] The connecting rod is a moving part that connects to the engine piston. It must have sufficient strength under the reciprocating motion inside the cylinder. Therefore, the bushing embedded in the small end bore of the connecting rod needs to be durable and reliable.

[0003] In existing technologies, bushings and connecting rods are typically assembled using a press-fit method. The main process involves fixing the connecting rod to the base of the equipment body, then using a clamp to fix the bushing, and driving the clamp and bushing to move downwards synchronously to press the bushing into the inner hole of the small end of the connecting rod. Existing clamps usually include a clamp assembly and a pressure rod assembly. The pressure rod assembly is mainly used for positioning the bushing, while the clamp assembly is mainly used for fixing the bushing. The two work together to achieve the positioning and fixation of the bushing.

[0004] In existing clamps, the movement of the clamp components is mainly accomplished by cylinders, which are controlled by switches. When clamping the bushing, the operator needs to press the switch while positioning the bushing, which can easily lead to operational errors, affecting the positioning accuracy of the bushing and further impacting the installation effect between the bushing and the connecting rod. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a bushing clamp.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bushing clamp for securing a bushing includes a pressure bar assembly, a clamp assembly, and a sensing assembly;

[0008] The pressure bar assembly has an abutment surface for abutting against the end face of the bushing;

[0009] The clamp assembly includes a radial telescopic part and a driving part. The radial telescopic part is located at the lower end of the pressure bar assembly, and the driving part is used to drive the radial telescopic part to extend or retract, so as to increase or decrease the force between the radial telescopic part and the bushing.

[0010] The sensing component includes a movable part and a sensing part. A portion of the movable part protrudes from the abutting surface. When the bushing abuts against the abutting surface, it can drive the movable part to move to a preset position. The sensing part is communicatively connected to the driving part so as to control the driving part to move when the movable part is sensed to move to the preset position.

[0011] Preferably, the bushing has a long end plane and a short end plane;

[0012] The abutting surface comprises at least a first abutting plane and a second abutting plane, the first abutting plane is used to abut with the long end plane, and the second abutting plane is used to abut with the short end plane;

[0013] The movable part is partially protruded from the first abutting plane.

[0014] Preferably, the pressure rod assembly comprises a detachably connected pressure head base and a pressure block seat;

[0015] The driving part is mounted on the pressure head base;

[0016] The pressure block seat is provided with a first mounting groove, and the upper end of the first mounting groove is provided with a first opening;

[0017] The movable part is mounted in the first mounting groove through the first opening.

[0018] Preferably, the movable part is slidably connected with the first mounting groove along the direction of gravity;

[0019] The movable part comprises an extension rod and a block, and the block is fixedly arranged on the upper end of the extension rod;

[0020] The projection of the block in the direction of gravity at least partially protrudes from the projection of the extension rod in the direction of gravity.

[0021] Preferably, the pressure block seat is further provided with a second mounting groove;

[0022] One end of the second mounting groove is in communication with the first mounting groove, and the other end is provided with a second opening penetrating through the pressure block seat;

[0023] The sensing part is inserted into the second mounting groove through the second opening, and the sensing part partially extends into the first mounting groove.

[0024] Preferably, the sensing part is arranged as a proximity switch, and the proximity switch is connected with the driving part through a wire;

[0025] The wire passes through the pressure block seat along the second mounting groove and the second opening.

[0026] Preferably, the pressure rod assembly further comprises a taper seat, and the taper seat is detachably connected with the pressure head base and the pressure block seat; the lower end of the taper seat is provided with a tapered abutting surface,

[0027] The driving part drives the radial telescopic part to axially move so as to abut with different positions of the tapered abutting surface.

[0028] Preferably, the radial telescopic part is arranged as a rubber expansion sleeve.

[0029] The driving part comprises a power source, a lever and a pull rod;

[0030] The power source is mounted on the pressure head base through a connecting plate;

[0031] The lever is hinged on the pressure head base, and one end is movably connected with the telescopic end of the power source, and the other end is movably connected with the pull rod;

[0032] The end of the pull rod away from the lever is connected with the rubber expansion sleeve.

[0033] Compared with the prior art, the utility model has the beneficial effects that:

[0034] The bushing clamp provided by the above scheme can directly control the driving part to act through the sensing part when the bushing and the abutting surface are positioned in abutment, thereby controlling the radial telescopic part to fix the bushing, without the need for an operator to press a switch, so that the bushing can be clamped while the positioning accuracy of the bushing is increased, and errors caused by manual operation are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0036] Figure 1 The structure schematic diagram of one of the examples provided by the utility model is shown.

[0037] Figure 2 The partial cutaway schematic diagram of Figure 1

[0038] Figure 3 The partial cutaway schematic diagram of Figure 1

[0039] Figure 4 The enlarged schematic diagram of D1 position in Figure 3

[0040] Figure 5 The enlarged schematic diagram of D2 position in Figure 3

[0041] Legend of the drawings:

[0042] ​​​​100, bushing; 200, long end plane; 300, short end plane; 1, pressing rod assembly; 10, abutting surface; 101, first abutting plane; 102, second abutting plane; 11, pressing head base; 12, pressing block base; 121, first mounting groove; 1211, first opening; 122, second mounting groove; 1221, second opening; 13, taper base; 131, taper matching surface; 2, clamp assembly; 21, radial telescopic part; 22, driving part; 221, power source; 222, lever; 223, pull rod; 224, connecting plate; 3, induction assembly; 31, movable part; 311, extension rod; 312, block; 32, induction part. DETAILED DESCRIPTION

[0043] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0044] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0046] Referring to Figures 1 to 5The utility model embodiment provides a bush clamp for fixing bush 100, including pressure lever assembly 1, clamp assembly 2 and response subassembly 3, wherein, pressure lever assembly 1 has butt joint surface 10, butt joint surface 10 is used for with the end surface of bush 100 abuts;Clamp assembly 2 includes radial telescopic portion 21 and drive portion 22, radial telescopic portion 21 is located at the lower end of pressure lever assembly 1, drive portion 22 is used to drive radial telescopic portion 21 telescopic, to increase or reduce the force between radial telescopic portion 21 and bush 100;Response subassembly 3 includes movable part 31 and response part 32, the partial convex of movable part 31 is in butt joint surface 10, when bush 100 abuts butt joint surface 10, can drive movable part 31 movement to the preset position, response part 32 is connected with drive portion 22 communication, to control drive portion 22 action when sensing movable part 31 movement to the preset position.

[0047] It is not difficult to understand that through the mutual cooperation of butt joint surface 10, bush 100, movable part 31, response part 32, drive portion 22 and radial telescopic portion 21 in the above scheme, when bush 100 is positioned with butt joint surface 10, drive portion 22 is directly controlled to act through response part 32, and then radial telescopic portion 21 is controlled to fix bush 100, without the need for operating personnel to press the switch, so that the positioning accuracy can be increased while bush 100 is clamped, and errors caused by manual operation are avoided.

[0048] Specifically, bush 100 has long end plane 200 and short end plane 300;Butt joint surface 10 includes at least first butt joint plane 101 and second butt joint plane 102, first butt joint plane 101 is used for abutting with long end plane 200, and second butt joint plane 102 abuts with short end plane 300;The partial convex of movable part 31 is in first butt joint plane 101, so that the long end plane 200 of bush 100 abuts with movable part 31 during clamping, and movable part 31 is pushed to move.

[0049] Referring to Figures 1 to 5 , in order to facilitate the assembly of the whole bush clamp, pressure lever assembly 1 includes detachably connected pressure head base 11 and pressure block seat 12;Drive portion 22 is installed on pressure head base 11;Pressure block seat 12 is provided with first installation groove 121, and the upper end of first installation groove 121 has first opening 1211;Movable part 31 is installed in first installation groove 121 through first opening 1211.

[0050] Further, the movable part 31 is slidably fitted with the first mounting slot 121 along the direction of gravity; the movable part 31 comprises an extension rod 311 and a block 312, the block 312 is fixed on the upper end of the extension rod 311; the projection of the block 312 on the direction of gravity at least partially protrudes from the projection of the extension rod 311 on the direction of gravity. Specifically, in the embodiment, the block 312 and the extension rod 311 are both provided as cylindrical rods, and the diameter of the block 312 is greater than the diameter of the extension rod 311.

[0051] It is not difficult to understand that the structure of the first mounting slot 121 is matched with the movable part 31, which comprises a portion matched with the extension rod 311 and a portion matched with the block 312; when the movable part 31 is installed to the first mounting slot 121 through the first opening 1211 and located at the lower limit position (but not separated from the pressing block seat 12), the portion of the extension rod 311 protrudes from the first abutting plane 101.

[0052] Further, the pressing block seat 12 is further provided with a second mounting slot 122; one end of the second mounting slot 122 is communicated with the first mounting slot 121, and the other end is provided with a second opening 1221 penetrating through the pressing block seat 12; the sensing part 32 is inserted into the second mounting slot 122 through the second opening 1221, and the sensing part 32 partially extends into the first mounting slot 121. In the embodiment, the central axis of the second mounting slot 122 is perpendicular to the central axis of the first mounting slot 121, and the second opening 1221 is arranged at the side position of the pressing block seat 12.

[0053] Further, the sensing part 32 is provided as a proximity switch, and the proximity switch is connected with the driving part 22 through a wire; the wire passes through the pressing block seat 12 along the second mounting slot 122 and the second opening 1221.

[0054] Referring to Figures 1 to 5 , the pressing rod assembly 1 further comprises a taper seat 13, which is detachably connected with the pressing head base 11 and the pressing block seat 12; the lower end of the taper seat 13 is provided with a tapered matching surface 131, and the driving part 22 drives the axial movement of the radial telescopic part 21 to make the radial telescopic part 21 abut with different positions of the tapered matching surface 131. It is worth mentioning that the "radial telescopic part 21 abuts with different positions of the tapered matching surface 131" here means that the same position of the radial telescopic part 21 abuts with different positions of the tapered matching surface 131, and the radial telescopic part 21 can slide along the axial direction.

[0055] Further, the radial telescopic part 21 is arranged as a rubber sleeve; the driving part 22 comprises a power source 221, a lever 222 and a pull rod 223, the power source 221 is installed on the pressure head base 11 through a connecting plate 224; the lever 222 is hinged on the pressure head base 11, and one end is movably connected with the telescopic end of the power source 221, and the other end is movably connected with the pull rod 223; the pull rod 223 is connected with the rubber sleeve at an end away from the lever 222. Wherein, the power source 221 can be arranged as an electric push rod or a pneumatic cylinder, and the rubber sleeve can be arranged as an annular structure connected with flexible rubber and hard rubber.

[0056] It can be understood that when the power source 221 drives the lever 222 to move downward at one end, the pull rod 223 can be driven to move upward at the other end, and then the rubber sleeve is driven to move upward, so that the rubber sleeve is in contact with the end with larger diameter of the tapered matching surface 131, and then the rubber sleeve is stretched outward in the radial direction (i.e. in the direction of the bushing 100), so as to increase the acting force between the outer wall surface of the rubber sleeve and the bushing 100, and realize the fixation of the bushing 100. Conversely (i.e. the rubber sleeve moves downward), the acting force between the rubber sleeve and the bushing 100 is reduced, and the rubber sleeve and the bushing 100 are released.

[0057] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. A bushing clamp for securing a bushing (100), characterized by, The device comprises a pressing rod assembly (1), a clamp assembly (2) and a sensing assembly (3); The pressing rod assembly (1) has an abutting surface (10) for abutting with an end surface of the bushing (100); The clamp assembly (2) comprises a radial telescopic part (21) at the lower end of the pressing rod assembly (1) and a driving part (22) for driving the radial telescopic part (21) to extend or retract so as to increase or decrease the acting force between the radial telescopic part (21) and the bushing (100); The sensing assembly (3) comprises a movable part (31) partially protruding from the abutting surface (10) and a sensing part (32) in communication with the driving part (22) to control the driving part (22) to act when the movable part (31) moves to a preset position upon abutting of the bushing (100) with the abutting surface (10).

2. A bushing clamp according to claim 1, wherein, The bushing (100) has a long end plane (200) and a short end plane (300); The abutting surface (10) comprises at least a first abutting plane (101) for abutting with the long end plane (200) and a second abutting plane (102) for abutting with the short end plane (300); The movable part (31) partially protrudes from the first abutting plane (101).

3. A bushing clamp according to claim 1 or 2, characterized in that The pressing rod assembly (1) comprises a detachably connected pressing head base (11) and a pressing block base (12); The driving part (22) is mounted on the pressing head base (11); The pressing block base (12) is provided with a first mounting groove (121) having a first opening (1211) at the upper end thereof; The movable part (31) is mounted in the first mounting groove (121) through the first opening (1211).

4. A bushing clamp according to claim 3, wherein, The movable part (31) is slidably fitted in the first mounting groove (121) along the direction of gravity; The movable part (31) comprises an extension rod (311) and a block (312) fixedly arranged at the upper end of the extension rod (311); The projection of the block (312) in the direction of gravity at least partially protrudes from the projection of the extension rod (311) in the direction of gravity.

5. A bushing clamp according to claim 3, wherein, The pressing block base (12) is further provided with a second mounting groove (122); One end of the second mounting groove (122) is in communication with the first mounting groove (121), and the other end is provided with a second opening (1221) penetrating through the pressing block base (12); The sensing part (32) is inserted into the second mounting groove (122) through the second opening (1221), and the sensing part (32) partially extends into the first mounting groove (121).

6. A bushing clamp according to claim 5, wherein, The sensing part (32) is configured as a proximity switch connected with the driving part (22) through wires. The guide wire passes through the pressing block seat (12) along the second installation groove (122) and the second opening (1221).

7. A bushing clamp as defined in claim 3 wherein, The pressing rod assembly (1) further comprises a taper seat (13) which is detachably connected with the pressing head base (11) and the pressing block seat (12); the lower end of the taper seat (13) is provided with a taper matching surface (131), The driving part (22) drives the radial telescopic part (21) to move axially so as to abut against different positions of the taper matching surface (131).

8. A bushing clamp according to claim 7, wherein, The radial telescopic part (21) is provided as a rubber expansion sleeve; The driving part (22) comprises a power source (221), a lever (222) and a pull rod (223); The power source (221) is installed on the pressing head base (11) through a connecting plate (224); The lever (222) is hinged on the pressing head base (11) and one end thereof is movably connected with the telescopic end of the power source (221) and the other end thereof is movably connected with the pull rod (223); The end of the pull rod (223) away from the lever (222) is connected with the rubber expansion sleeve.

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