Combined hook pin cylinder

Abstract

The utility model discloses a combined hooking pin cylinder, and particularly relates to the field of automobile accessories, the combined hooking pin cylinder comprises a cylinder body main shell, a mounting baffle is arranged on the outer side of the top end of the cylinder body main shell, a pin shell is arranged at the top of the cylinder body main shell, the bottom end of the pin shell and the cylinder body main shell are fixed through a supporting block, and a working cavity is formed in the cylinder body main shell. The standard air cylinder drives the pin hook to reciprocate up and down so as to clamp a workpiece, that is, the piston of the standard air cylinder reciprocates up and down through air intake of the air inlet hole and air exhaust of the air exhaust hole, the piston rod of the standard air cylinder drives the fork-shaped piece and the pin hook to reciprocate up and down, and the pin hook swings up and down around the positioning pin. The function of locking and unlocking the pin hook is realized; the whole clamping device adopts a high-strength aluminum alloy cylinder body main shell, so that the working stability of a system and the internal cleanliness of the system are ensured, the overall appearance space size of a clamp and a gripper is reduced, the clamping and positioning precision of a tool on a workpiece is ensured, and the precision of a welding process is greatly ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and more specifically, to a combined detent cylinder. Background Art

[0002] The body welding line, one of the four major production processes of automobile production, has also gone through a development process from low efficiency to high efficiency, and from a single-vehicle single line to a flexible production line for multiple vehicles on a common line in the industrial industry. There is a certain gap between the automobile industry and developed countries in terms of overall design planning concepts and processing and manufacturing levels. In order to improve the quality and production capacity of domestically produced automobiles, it is necessary to put forward more stringent requirements on the production process, and also put forward higher requirements on the tooling and fixtures in automobile production.

[0003] The clamps currently used in the largest number of automobile factory welding lines have the following shortcomings:

[0004] (1) Large size: Increases the overall size of the fixture and gripper.

[0005] (2) Poor precision: Most common piston linear cylinders use external mechanisms to achieve tightening, and the accuracy is difficult to guarantee.

[0006] (3) Heavy weight: Both the weight of the clamp and the installation accessories increase the weight of the clamp and gripper, reducing the load capacity.

[0007] (4) Easy to interfere: The size of the clamp product itself and the layout of the clamping points are easily affected by the interference problems caused by the position of the welding point, the placement of the workpiece, and the coordination of the tooling. Utility Model Content

[0008] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a combined detent cylinder.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined hook pin cylinder, comprising a cylinder main shell, a mounting baffle is provided on the outer side of the top of the cylinder main shell, a pin shell is provided on the top of the cylinder main shell, the bottom end of the pin shell is fixed to the cylinder main shell by a bracket, a working cavity is provided inside the cylinder main shell, a standard cylinder is provided inside the working cavity, a fork is fixed on the top of the standard cylinder, a pin hook is provided on the top of the fork, and the bottom end of the pin hook is connected to the fork by a fixing pin;

[0010] The inner cavity of the pin shell is provided with an adjustment cavity adapted to the pin hook, and the top of the pin shell is provided with a hook groove communicating with the adjustment cavity, the middle of the pin hook is provided with an arc-shaped adjustment groove, and a positioning pin is fixedly provided at the position where the working cavity in the main shell of the cylinder body and the arc-shaped adjustment groove are aligned;

[0011] An air inlet hole and an air outlet hole are provided at the bottom end of the cylinder main shell, and both the air inlet hole and the air outlet hole are communicated with the working cavity.

[0012] In a preferred embodiment, the mounting baffle and the support block are fixed to the main housing of the cylinder body by bolts, and the mounting baffle is also provided with a fixing hole for external connection.

[0013] In a preferred embodiment, a mounting groove is longitudinally opened at the center of the top end of the bracket block, and the bracket block fixes the pin housing to the main housing of the cylinder body through the mounting groove.

[0014] In a preferred embodiment, the width of the arc-shaped adjustment groove is equivalent to the outer diameter of the positioning pin.

[0015] In a preferred embodiment, the working cavity includes an operating cavity and a working cavity, the operating cavity and the working cavity are connected through a through groove, and the size of the working cavity is equivalent to that of a standard cylinder, ensuring that the standard cylinder moves linearly along the longitudinal direction of the working cavity.

[0016] In a preferred embodiment, the cylinder main shell and the mounting baffle are both made of aluminum alloy material.

[0017] Technical effects and advantages of the utility model:

[0018] The utility model clamps the workpiece by driving the pin hook to move up and down reciprocatingly through the standard cylinder, that is, air is taken in through the air inlet and exhausted through the exhaust hole, so that the piston of the standard cylinder moves up and down reciprocatingly, the piston rod of the standard cylinder drives the fork and the pin hook to move up and down reciprocatingly, and the pin hook swings up and down around the positioning pin to realize the function of locking and opening the pin hook; the entire clamp adopts a high-strength aluminum alloy cylinder body main shell to ensure the working stability of the system and the cleanliness of the inside of the system, reduce the overall external space size of the clamp and the gripper, ensure the tightening and positioning accuracy of the tooling on the workpiece, and greatly ensure the accuracy of the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the cutaway structure of the utility model.

[0021] The reference numerals in the drawings are: 1 pin housing, 2 pin hook, 3 support block, 4 positioning pin, 5 cylinder main housing, 6 mounting baffle, 7 fixing pin, 8 fork-shaped piece, 9 standard cylinder, 10 air inlet hole, 11 exhaust hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides a combined pin-off cylinder, comprising a cylinder main shell 5, a mounting baffle 6 is arranged on the outer side of the top of the cylinder main shell 5, a pin shell 1 is arranged on the top of the cylinder main shell 5, the bottom end of the pin shell 1 is fixed to the cylinder main shell 5 by a bracket 3, a mounting groove is longitudinally opened at the center of the top of the bracket 3, the bracket 3 fixes the pin shell 1 on the cylinder main shell 5 through the mounting groove, the mounting baffle 6 and the bracket 3 are fixed to the cylinder main shell 5 by bolts, and a fixing hole for external connection is also opened on the mounting baffle 6, the cylinder A working cavity is provided inside the main shell 5 of the cylinder body, and a standard cylinder 9 is provided inside the working cavity. The working cavity includes an operating cavity and a working cavity. The operating cavity and the working cavity are connected through a through groove, and the size of the working cavity is equivalent to that of the standard cylinder 9, so as to ensure that the standard cylinder 9 moves linearly along the longitudinal direction of the working cavity. A fork-shaped piece 8 is fixedly provided on the top of the standard cylinder 9, and a pin hook 2 is provided on the top of the fork-shaped piece 8. The bottom end of the pin hook 2 is connected to the fork-shaped piece 8 by a fixing pin 7. The main shell 5 of the cylinder body and the mounting baffle 6 are both made of aluminum alloy material;

[0024] The inner cavity of the pin shell 1 is provided with an adjustment cavity adapted to the pin hook 2, and a hook groove communicating with the adjustment cavity is opened at the top of the pin shell 1, and an arc-shaped adjustment groove is opened in the middle of the pin hook 2. A positioning pin 4 is fixedly provided at the position where the working cavity in the cylinder main shell 5 and the arc-shaped adjustment groove are aligned, and the width of the arc-shaped adjustment groove is equivalent to the outer diameter of the positioning pin 4;

[0025] An air inlet 10 and an air outlet 11 are provided at the bottom of the cylinder main shell 5, and both the air inlet 10 and the air outlet 11 are communicated with the working cavity.

[0026] like Figure 1-2 As shown, the specific implementation method is as follows: the pin hook 2 is connected to the fork-shaped member 8 through the pin housing 1, the fork-shaped member 8 is fixedly connected to the piston rod of the standard cylinder 9, the standard cylinder 9 is fixedly connected to the cylinder main housing 5, both ends of the positioning pin 4 are fixedly connected to the cylinder main housing 5, the pin housing 1 and the support block 3 are fixedly connected to the cylinder main housing 5, and the mounting baffle 6 is fixedly connected to the cylinder main housing 5 to keep the interior of the product closed to prevent welding slag from entering;

[0027] A standard cylinder 9 is used to drive the pin hook 2 to reciprocate up and down to clamp the workpiece, that is, air is taken in through the air inlet 10 and exhausted through the exhaust hole 11 on the standard cylinder 9, so that the piston of the standard cylinder 9 reciprocates up and down, and the piston rod of the standard cylinder 9 drives the fork 8 and the pin hook 2 to reciprocate up and down, and the pin hook 2 swings up and down around the locating pin 4 to achieve the function of locking and opening the pin hook 2; the pin hook 2 utilizes the elbow rod design principle to generate a large clamping force with a relatively small working air pressure. In order to meet the requirements of the clamp for different base plate thicknesses and apertures, the pin shell 1, pin hook 2 and support block 3 can be replaced relatively conveniently. The entire clamp adopts a high-strength aluminum alloy cylinder main shell 5 to ensure the working stability of the system and the cleanliness of the system.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0029] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A combined detent cylinder, comprising a cylinder main shell (5), characterized in that: A mounting baffle (6) is provided on the outer side of the top of the cylinder main shell (5), a pin shell (1) is provided on the top of the cylinder main shell (5), the bottom end of the pin shell (1) is fixed to the cylinder main shell (5) by a support block (3), a working cavity is provided inside the cylinder main shell (5), a standard cylinder (9) is provided inside the working cavity, a fork-shaped piece (8) is fixed on the top of the standard cylinder (9), a pin hook (2) is provided on the top of the fork-shaped piece (8), and the bottom end of the pin hook (2) is connected to the fork-shaped piece (8) by a fixing pin (7); The inner cavity of the pin shell (1) is provided with an adjustment cavity adapted to the pin hook (2), and the top of the pin shell (1) is provided with a hook groove communicating with the adjustment cavity, the middle of the pin hook (2) is provided with an arc-shaped adjustment groove, and a positioning pin (4) is fixedly provided at the position where the working cavity in the cylinder main shell (5) and the arc-shaped adjustment groove are aligned; An air inlet (10) and an air outlet (11) are provided at the bottom end of the cylinder main shell (5), and both the air inlet (10) and the air outlet (11) are communicated with the working cavity.

2. A combined detent cylinder according to claim 1, characterized in that: The connection between the mounting baffle (6) and the support block (3) and the cylinder main shell (5) is fixed by bolts, and a fixing hole for external connection is also provided on the mounting baffle (6).

3. A combined detent cylinder according to claim 2, characterized in that: A mounting groove is longitudinally provided at the center of the top end of the support block (3), and the support block (3) fixes the pin housing (1) to the cylinder main housing (5) through the mounting groove.

4. A combined detent cylinder according to claim 1, characterized in that: The width of the arc-shaped adjustment groove is equivalent to the outer diameter of the positioning pin (4).

5. The combined detent cylinder according to claim 1, characterized in that: The working cavity comprises an operating cavity and a working cavity, the operating cavity and the working cavity are connected via a through groove, and the size of the working cavity is equivalent to that of a standard cylinder (9), thereby ensuring that the standard cylinder (9) moves linearly along the longitudinal direction of the working cavity.

6. The combined detent cylinder according to claim 1, characterized in that: The cylinder main shell (5) and the mounting baffle (6) are both made of aluminum alloy material.

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