Hydraulic positioning tool

Abstract

The utility model discloses a hydraulic positioning tool which comprises a body, a main positioning pin and an auxiliary positioning pin. The main positioning pin comprises a main positioning pin seat and a main positioning pin cover, a main sliding block mounting cavity is further formed in the top of the main positioning pin seat, and a main sliding block is mounted in the main sliding block mounting cavity; the device further comprises a main push cylinder installed on the body, a main push rod is coaxially installed at the extending end of the main push cylinder, a main positioning pin push column is coaxially installed on the main push rod, and the structure of the auxiliary positioning pin is the same as that of the main positioning pin. And the hydraulic device is communicated with the main positioning pin and the auxiliary positioning pin. According to the hydraulic positioning tool provided by the utility model, by adopting the positioning mechanism corresponding to the hydraulic clamp and the automatic positioning mechanism which is uniform in stress of a workpiece to be processed and is suitable for being matched with the hydraulic clamp, and by virtue of the jacking and descending functions of a hydraulic component and the matching with a mechanical structure, the automatic jacking and loosening functions of the positioning pin are achieved; and automatic hydraulic positioning is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely relates to a hydraulic positioning frock. BACKGROUND

[0002] In recent years, the market demand of S series transmission shell of our company is more and more vigorous, the production of shell is rising, and the manual clamp cannot meet the production demand due to high labor intensity, low efficiency, unstable product quality and other reasons. The rear cover shell material is ADC12, and the OP10 process is processed by adopting two bearing hole positioning.

[0003] During the processing of shell parts, the positioning hole size of some parts is large, the quality of spring bounce structure is unstable, the stress of the processed workpiece is uneven, and it is suitable for small batch manual processing. For mass production, hydraulic clamp is widely used due to the characteristics of fast and effective, uniform stress of the processed workpiece. SUMMARY

[0004] In view of the defects in the prior art, the utility model aims at providing a hydraulic positioning frock, which solves the problems of unstable quality of the positioning device and uneven stress of the processed workpiece in the prior art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a hydraulic positioning frock, comprising a body, a main positioning pin and a slave positioning pin installed on the body.

[0006] The main positioning pin comprises a main positioning pin seat installed on the body and a main positioning pin cover installed on the top of the main positioning pin seat, and the top of the main positioning pin seat is also provided with a main sliding block mounting cavity, the axis of the main sliding block mounting cavity is perpendicular to the axis of the main positioning pin seat, a main sliding block is installed in the main sliding block mounting cavity, and the end of the main sliding block away from the axis of the main positioning pin seat is flush with the outer surface of the main positioning pin seat.

[0007] The main positioning pin seat is provided with a main containing cavity along the axis direction of itself, and the main containing cavity is communicated with the main sliding block mounting cavity.

[0008] The main positioning pin further comprises a main push cylinder installed on the body, a main push rod is coaxially installed on the extending end of the main push cylinder, a main positioning pin push column is coaxially installed on the main push rod, and the end of the main positioning pin push column away from the main push rod is a circular truncated cone body.

[0009] The main push cylinder, the main push rod and the main positioning pin push column are all located in the main containing cavity.

[0010] The structure of the slave positioning pin is the same as that of the main positioning pin.

[0011] The hydraulic positioning tool further comprises a hydraulic device in communication with the main positioning pin and the auxiliary positioning pin.

[0012] The hydraulic device comprises a connecting valve mounted on the body and an oil passage formed in the body, the connecting valve is in communication with the oil passage, and the oil passage is in communication with the main positioning pin and the auxiliary positioning pin.

[0013] The utility model still has the following technical features:

[0014] The main positioning pin cover is provided with a main jacking column cavity on one side facing the main positioning pin seat and a main rebound cavity on one side facing away from the main positioning pin seat, and the main jacking column cavity is in communication with the main rebound cavity.

[0015] One end of the main rebound cavity facing away from the main positioning pin seat is closed by a screw, one end of the screw facing the main positioning pin seat is further provided with a main compression spring, a main jacking column is mounted on the main compression spring, and the main jacking column is in contact with the main positioning pin push column through the main jacking column cavity.

[0016] The hydraulic device comprises a connecting valve mounted on the body and an oil passage formed in the body, the connecting valve is in communication with the oil passage, and the oil passage is in communication with the main positioning pin and the auxiliary positioning pin.

[0017] A pin cover adjusting pad is arranged between the screw and the top surface of the main positioning pin cover.

[0018] A branch head is mounted on a section of the main sliding block away from the axis of the main sliding block mounting cavity, and a sliding block adjusting pad is further arranged between the branch head and the main sliding block.

[0019] The main positioning pin and the auxiliary positioning pin are both fixed on the body by screws.

[0020] Compared with the prior art, the utility model has the following technical effects:

[0021] (I) The hydraulic positioning tool provided by the utility model is suitable for the automatic positioning mechanism matched with the hydraulic clamp, the workpiece is uniformly stressed through the positioning mechanism corresponding to the hydraulic clamp, the hydraulic component lifting and lowering function is matched with the mechanical structure to achieve the automatic lifting and loosening function of the positioning pin and realize the automatic hydraulic positioning.

[0022] (II) The hydraulic positioning tool provided by the utility model has the advantages of simple structure, convenient operation, safety and reliability, and strong adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a general structure schematic view of the hydraulic positioning tool of the utility model.

[0024] Figure 2The sectional design structure schematic view of the primary positioning pin of the utility model.

[0025] Figure 3 The sectional design structure schematic view of the secondary positioning pin of the utility model.

[0026] Figure 4 The application state schematic view of the utility model.

[0027] The meaning of each label in the drawing is as follows:

[0028] 1-body, 2-primary positioning pin, 3-secondary positioning pin, 4-hydraulic device, 5-screw, 6-pin cover adjusting pad, 7-branch head, 8-sliding block adjusting pad.

[0029] 2-1 primary positioning pin seat, 2-2 primary positioning pin cover, 2-3 primary sliding block mounting cavity, 2-4 primary sliding block, 2-5 primary containing cavity, 2-6 primary push cylinder, 2-7 primary push rod, 2-8 primary positioning pin push column, 2-9 primary top column cavity, 2-10 primary rebound cavity, 2-11 primary compression spring, 2-12 primary top column.

[0030] 3-1 secondary positioning pin seat, 3-2 secondary positioning pin cover, 3-3 secondary sliding block mounting cavity, 3-4 secondary sliding block, 3-5 secondary containing cavity, 3-6 secondary push cylinder, 3-7 secondary push rod, 3-8 secondary positioning pin push column, 3-9 secondary top column cavity, 3-10 secondary rebound cavity, 3-11 secondary compression spring, 3-12 secondary top column.

[0031] 4-1 connecting valve, 4-2 oil way, 4-3 sequence valve.

[0032] The specific content of the utility model is further explained and described in detail in combination with the following embodiments. DETAILED DESCRIPTION

[0033] All components in the utility model, if no special description, all adopt the components known in the prior art.

[0034] The following gives the specific embodiments of the utility model, and it is to be explained that the utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical scheme of the application falls within the protection scope of the utility model.

[0035] Embodiment 1:

[0036] This embodiment gives a kind of hydraulic positioning tool, as shown in 1- Figure 4 It further includes primary positioning pin 2 and secondary positioning pin 3 installed on body 1.

[0037] The main positioning pin 2 comprises a main positioning pin seat 2-1 installed on the body 1 and a main positioning pin cover 2-2 installed on the top of the main positioning pin seat 2-1, the top of the main positioning pin seat 2-1 is also provided with a pair of main sliding block installation cavities 2-3, the axis of the main sliding block installation cavity 2-3 is perpendicular to the axis of the main positioning pin seat 2-1, and the main sliding block installation cavity 2-3 is installed with a main sliding block 2-4, the end of the main sliding block 2-4 away from the axis of the main positioning pin seat 2-1 is flush with the outer surface of the main positioning pin seat 2-1.

[0038] The main positioning pin seat 2-1 is provided with a main containing cavity 2-5 along the axis direction of the main positioning pin seat 2-1, and the main containing cavity 2-5 is communicated with the main sliding block installation cavity 2-3.

[0039] The main positioning pin 2 further comprises a main push cylinder 2-6 installed on the body 1, a main push rod 2-7 coaxially installed on the extending end of the main push cylinder 2-6, and a main positioning pin push column 2-8 coaxially installed on the main push rod 2-7, the end of the main positioning pin push column 2-8 away from the main push rod 2-7 is in the shape of a circular truncated cone, and the inclined surface of the main positioning pin push column 2-8 is in contact with the end of the main sliding block 2-4 towards the main positioning pin seat 2-1.

[0040] The main push cylinder 2-6, the main push rod 2-7 and the main positioning pin push column 2-8 are all located in the main containing cavity 2-5.

[0041] The slave positioning pin 3 comprises a slave positioning pin seat 3-1 installed on the body 1 and a slave positioning pin cover 3-2 installed on the top of the slave positioning pin seat 3-1, the top of the slave positioning pin seat 3-1 is also provided with three slave sliding block installation cavities 3-3, the axis of the slave sliding block installation cavity 3-3 is perpendicular to the axis of the slave positioning pin seat 3-1, and the slave sliding block installation cavity 3-3 is installed with a slave sliding block 3-4, the end of the slave sliding block 3-4 away from the axis of the slave positioning pin seat 3-1 is flush with the outer surface of the slave positioning pin seat 3-1.

[0042] The slave positioning pin seat 3-1 is provided with a slave containing cavity 3-5 along the axis direction of the slave positioning pin seat 3-1, and the slave containing cavity 3-5 is communicated with the slave sliding block installation cavity 3-3.

[0043] The slave positioning pin 3 further comprises a slave push cylinder 3-6 installed on the body 1, a slave push rod 3-7 coaxially installed on the extending end of the slave push cylinder 3-6, and a slave positioning pin push column 3-8 coaxially installed on the slave push rod 3-7, the end of the slave positioning pin push column 3-8 away from the slave push rod 3-7 is in the shape of a circular truncated cone, and the inclined surface of the slave positioning pin push column 3-8 is in contact with the end of the slave sliding block 3-4 towards the slave positioning pin seat 3-1.

[0044] The slave push cylinder 3-6, the slave push rod 3-7 and the slave positioning pin push column 3-8 are all located in the slave containing cavity 3-5.

[0045] The structure of the slave positioning pin 3 is the same as that of the main positioning pin 2.

[0046] The hydraulic positioning tool further comprises a hydraulic device 4, the hydraulic device 4 comprises a connecting valve 4-1 mounted on the body 1 and an oil passage 4-2 opened in the body 1, the connecting valve 4-1 communicates with the oil passage 4-2, and the oil passage 4-2 communicates with the main positioning pin 2 and the slave positioning pin 3.

[0047] The oil passage 4-2 specifically communicates with the main positioning pin push column 2-8 and the slave positioning pin push column 3-8.

[0048] The oil passage 4-2 is further connected with a sequence valve 4-3.

[0049] The sequence valve 4-3 is used to prevent the main positioning pin 2 and the slave positioning pin 3 from moving simultaneously, causing simultaneous positioning and being difficult to install, and simultaneously preventing positioning deformation; a sequence valve is added between the main positioning pin 2 and the slave positioning pin 3, so that the main positioning pin 2 moves and positions first, and then the slave positioning pin 3 moves and positions. Figure 4 The sequence valve at the leftmost side ensures that the main positioning pin 2 completes positioning, and then the slave positioning pin 3 starts to move and install and position.

[0050] In order to reduce the labor intensity of personnel, improve the efficiency, and improve the stability of product quality, a set of hydraulic clamps are designed, the hydraulic clamps are used for positioning of large bearing holes, a hydraulic automatic control positioning structure is designed, automatic pressing is realized, automatic unloading of workpieces is ensured each time, stress is uniform, workpiece deformation is reduced, and machining quality is stable.

[0051] As a preferred embodiment of the present embodiment:

[0052] The main positioning pin cover 2-2 is provided with a main push column cavity 2-9 on the side facing the main positioning pin seat 2-1 and a main rebound cavity 2-10 on the side away from the main positioning pin seat 2-1, and the main push column cavity 2-9 communicates with the main rebound cavity 2-10.

[0053] The main rebound cavity 2-10 is closed at the end away from the main positioning pin seat 2-1 by a screw 5, the end of the screw 5 facing the main positioning pin seat 2-1 is further provided with a main compression spring 2-11, the main compression spring 2-11 is provided with a main push column 2-12, and the main push column 2-12 penetrates through the main push column cavity 2-9 and contacts the main positioning pin push column 2-8. The main compression spring 2-11 assists the main positioning pin push column 2-8 to return to the original position when the hydraulic device returns oil.

[0054] The slave positioning pin cover 3-2 is provided with a slave push column cavity 3-9 on the side facing the slave positioning pin seat 3-1 and a slave rebound cavity 3-10 on the side away from the slave positioning pin seat 3-1, and the slave push column cavity 3-9 communicates with the slave rebound cavity 3-10.

[0055] Said from the rebound cavity 3-10 back from the positioning pin seat 3-1 one end with screw 5 closed, screw 5 from the positioning pin seat 3-1 one end is also installed from the compression spring 3-11, from the compression spring 3-11 on the installation of the from the top column 3-12, said from the top column 3-12 through from the top column cavity 3-9 and from the positioning pin push column 3-8 contact.

[0056] As a preferred embodiment of the present application:

[0057] Said screw 5 and the top surface of the main positioning pin cover 2-2 between the arrangement of pin cover adjustment pad 6.

[0058] As a preferred embodiment of the present application:

[0059] Said main slider 2-4 away from the axis of the main slider mounting cavity 2-3 one end of the installation of the head 7, said head 7 and main slider 2-4 between the arrangement of slider adjustment pad 8.

[0060] Said from the slider 3-4 away from the axis of the slider mounting cavity 3-3 on the installation of the head 7, said head 7 and from the slider 3-4 between the arrangement of slider adjustment pad 8.

[0061] When moving up, the head 7 moves outwards until the head is in contact with the workpiece positioning hole, achieving clamping positioning; when moving down, the head 7 retracts inwardly until the head gradually loses contact with the workpiece positioning hole, achieving loosening and canceling positioning.

[0062] As a preferred embodiment of the present application:

[0063] Said main positioning pin 2 and from the positioning pin 3 are fixed on the body 1 by bolts.

[0064] The specific operation method is as follows:

[0065] 1. Load the positioning workpiece

[0066] Main positioning pin: after the workpiece to be processed is placed on the hydraulic clamp and is clamped, the connecting valve 4-1 is started, the oil way 4-2 starts to feed oil, the main push rod 2-7 above the main push cylinder 2-6 is pushed to rise, continuously driving the main positioning pin push column 2-8 to rise, and further driving the main slider 2-4 to move outward, and further driving the head 7 to move outward until the head 7 is in close contact with the positioning hole of the workpiece, achieving automatic hydraulic positioning.

[0067] The loading and positioning of the workpiece by the from positioning pin 3 is consistent with that by the main positioning pin 2.

[0068] 2. Unload the workpiece and cancel the positioning:

[0069] The main positioning pin: when the workpiece to be processed is ready to be unloaded from the hydraulic clamp, the connecting valve 4-1 is closed, the oil circuit 4-2 starts to return oil, the main push rod 2-7 above the push member main push cylinder 2-6 is pushed down, the main positioning pin push column 2-8 is continuously driven to descend, and the main sliding block 2-4 is driven to move back, causing the branch head 7 to move inwards and be disconnected from the positioning hole of the workpiece, thereby achieving the automatic hydraulic positioning cancellation function.

[0070] The workpiece is unloaded from the positioning pin 3 in the same way as the main positioning pin 2.

[0071] The above technical solutions are only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can think of changes or replacements within the technical range disclosed by the present application without creative labor, which is covered by the protection scope of the present application.

Claims

1. A hydraulic positioning tool, comprising a body (1), characterized in that: It also includes a main positioning pin (2) and a secondary positioning pin (3) mounted on the body (1); The main positioning pin (2) comprises a main positioning pin seat (2-1) mounted on the body (1) and a main positioning pin cover (2-2) mounted on the top of the main positioning pin seat (2-1); a main slider installation cavity (2-3) is further provided on the top of the main positioning pin seat (2-1); the axis of the main slider installation cavity (2-3) is perpendicular to the axis of the main positioning pin seat (2-1); and a main slider (2-4) is installed in the main slider installation cavity (2-3); The main positioning pin seat (2-1) is provided with a main accommodating cavity (2-5) along its own axial direction, and the main accommodating cavity (2-5) is communicated with the main slider installation cavity (2-3); The main positioning pin (2) further comprises a main push cylinder (2-6) mounted on the main body (1); a main push rod (2-7) is coaxially mounted on the protruding end of the main push cylinder (2-6); a main positioning pin push column (2-8) is coaxially mounted on the main push rod (2-7); and the main positioning pin push column (2-8) has a frustum-shaped end away from the main push rod (2-7); The main push cylinder (2-6), main push rod (2-7) and main positioning pin push column (2-8) are all located in the main accommodating cavity (2-5); The structure of the slave positioning pin (3) is the same as that of the master positioning pin (2); The hydraulic positioning tool further comprises a hydraulic device (4), which is connected to the main positioning pin (2) and the slave positioning pin (3).

2. A hydraulic positioning tool as claimed in claim 1, characterized in that: The main positioning pin cover (2-2) is provided with a main top column cavity (2-9) on the side facing the main positioning pin seat (2-1), and a main rebound cavity (2-10) on the side facing away from the main positioning pin seat (2-1), and the main top column cavity (2-9) is communicated with the main rebound cavity (2-10); The end of the main rebound cavity (2-10) facing away from the main positioning pin seat (2-1) is closed by a screw (5); the end of the screw (5) facing the main positioning pin seat (2-1) is also installed with a main compression spring (2-11); the main compression spring (2-11) is installed with a main top column (2-12); the main top column (2-12) passes through the main top column cavity (2-9) and contacts the main positioning pin push column (2-8).

3. The hydraulic positioning tool according to claim 1, characterized in that: The hydraulic device (4) comprises a connecting valve (4-1) mounted on the body (1) and an oil circuit (4-2) opened in the body (1); the connecting valve (4-1) is connected to the oil circuit (4-2); and the oil circuit (4-2) is connected to the main positioning pin (2) and the slave positioning pin (3).

4. A hydraulic positioning tool as claimed in claim 2, characterized in that: A pin cover adjustment pad (6) is arranged between the screw (5) and the top surface of the main positioning pin cover (2-2).

5. The hydraulic positioning tool according to claim 1, characterized in that: A support head (7) is installed on one end of the main slider (2-4) away from the axis of the main slider installation cavity (2-3), and a slider adjustment pad (8) is arranged between the support head (7) and the main slider (2-4).

6. The hydraulic positioning tool according to claim 1, characterized in that: The main positioning pin (2) and the secondary positioning pin (3) are both fixed to the body (1) by screws.

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