Single-hook self-locking bottom plate cylinder

Abstract

The utility model discloses a single-hook self-locking bottom plate cylinder, which relates to the technical field of auto spare parts, and comprises a self-locking bottom plate cylinder main body, a pin is arranged at the top of the self-locking bottom plate cylinder main body, a support block is arranged at the bottom of the pin, a hook is arranged in the middle of the pin, a shell pin is arranged in the middle of the bottom of the hook, and the shell pin is connected with the self-locking bottom plate cylinder main body. A second L-shaped piece is arranged at the bottom end of the hook, a first L-shaped piece is arranged on one side of the second L-shaped piece, a fixing pin is arranged in the middle of the first L-shaped piece, and a fork-shaped piece pin is arranged at the end, away from the second L-shaped piece, of the first L-shaped piece. According to the utility model, air is introduced and exhausted through the air holes of the upper cover and the lower cover, so that the piston moves up and down in a reciprocating manner, the piston drives the piston rod and the fork-shaped piece pin to move up and down in a reciprocating manner, the fork-shaped piece pin drives the first L-shaped piece to rotate around the fixed pin, the first L-shaped piece drives the second L-shaped piece to swing, and the second L-shaped piece drives the hook to realize a locking and opening function; and the tool failure under the conditions of power failure and gas failure is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially relates to a single hook self -locking bottom plate cylinder. BACKGROUND

[0002] In order to improve the quality and capacity problem of domestic car, need to put forward more strict requirement to production process, also put forward higher requirement to the fixture in automobile production.

[0003] The current commonly used in the welding fixture clamping device, through the clamping device clamping automobile sheet metal parts and assembly parts to carry and fix the bodywork, then carries out the next bodywork welding work. To improve the degree of automation, to ensure the welding precision and quality and efficiency of the welding workpiece. The current largest quantity of automobile factory welding line's clamping device and the following several shortcomings: large volume, increase the overall profile space size of the fixture and gripper;Poor precision, most use ordinary piston type straight line cylinder to realize the tightening of external mechanism, and the precision is difficult to guarantee;Self-locking function, prevent the workpiece from separating from the fixture or the gripper tool falling or losing deformation under the condition of power failure and gas failure;Heavy weight, whether the weight of the clamping device or the installation accessories increases the weight of the fixture and gripper, and the load capacity is discounted;Easy to interfere, the size of the clamping device itself and the clamping point distribution are easy to be interfered by the welding point position, workpiece taking and placing, tool cooperation. CONTENT OF THE UTILITY MODEL

[0004] The utility model mainly aims at providing a single hook self -locking bottom plate cylinder, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the utility model adopts the technical scheme that:

[0006] A single hook self -locking bottom plate cylinder, including self -locking bottom plate cylinder main part, the top of self -locking bottom plate cylinder main part is provided with the pin, and the bottom of pin is provided with the block, the middle of pin is provided with the hook, the bottom of block is provided with the backing plate, and the bottom of backing plate is provided with the shell;

[0007] The middle of the bottom of shell is provided with the piston rod, and the outer wall of piston rod is provided with the piston, the bottom of shell is provided with the baffle, and the bottom of baffle is provided with the upper cover, the bottom of upper cover is provided with the cylinder barrel, and the bottom of cylinder barrel is provided with the lower cover;

[0008] The front of shell is provided with the sensor, and the side close to shell of sensor is provided with the induction sheet;

[0009] The bottom of the hook is provided with a shell pin, the bottom end of the hook is provided with a second L-shaped piece, one side of the second L-shaped piece is provided with a first L-shaped piece, the middle of the first L-shaped piece is provided with a fixing pin, and the end of the first L-shaped piece away from the second L-shaped piece is provided with a fork pin.

[0010] Preferably, the pin is inserted into the middle of the top of the supporting block, and the pin is in sliding connection with the supporting block, the side surface of the pin is in sliding connection with the hook, the end of the hook close to the pin penetrates the side surface of the pin, the end of the hook away from the pin is connected to the inside of the shell, the middle of the hook is provided with a shell pin, and the hook is connected with the shell through the shell pin.

[0011] Preferably, the bottom of the supporting block is connected with the base plate through bolts, and the bottom of the base plate is in contact with the top of the shell, the base plate is connected with the shell through bolts, and the base plate is located on one side of the top of the shell, and the hook penetrates the base plate and is connected to the inside of the shell.

[0012] Preferably, the end of the hook away from the pin is connected with a second L-shaped piece through bolts, the second L-shaped piece is located in the inside of the shell, the end of the second L-shaped piece away from the hook is connected with a short pin through threads, the second L-shaped piece is connected with a first L-shaped piece through the short pin, and the first L-shaped piece and the second L-shaped piece are staggered and arranged in the inside of the shell.

[0013] Preferably, the middle of the first L-shaped piece is provided with a fixing pin, the first L-shaped piece is connected with the shell through the fixing pin, the end of the first L-shaped piece away from the short pin is provided with a fork pin, the end of the first L-shaped piece close to the fork pin is provided with a sliding groove in the middle, and the fork pin is in sliding connection with the sliding groove in the end of the first L-shaped piece.

[0014] Preferably, the bottom of the fork pin is in contact with the top end of the piston rod, and the piston rod is in sliding connection with the inside of the shell, the end of the piston rod away from the fork pin penetrates the shell and is connected to the inside of the cylinder, the bottom end of the piston rod is provided with a piston, and the piston is located in the inside of the cylinder.

[0015] Preferably, the inside of the upper cover is provided with a groove, and the inside of the groove is provided with a spring fixing block, the spring fixing block is sleeved on the outside of the piston rod, the upper cover is connected with the partition plate through bolts, and the partition plate is connected with the shell through bolts.

[0016] Compared with the prior art, the utility model has the advantages of the following:

[0017] The upper cover and the lower cover are provided with air holes for air intake and exhaust, so that the piston reciprocates up and down, the piston drives the piston rod and the fork-shaped pin to reciprocate up and down, the fork-shaped pin drives the first L-shaped piece to rotate around the fixed pin, the first L-shaped piece drives the second L-shaped piece to swing, and the second L-shaped piece drives the hook to realize the locking and opening functions, thereby effectively preventing the tool failure under the conditions of power failure and gas failure. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the first perspective view of the whole device of the utility model;

[0019] Figure 2 is the second perspective view of the whole device of the utility model;

[0020] Figure 3 is the structure schematic view of the whole device section of the utility model;

[0021] Figure 4 is the structure schematic view of the side view section of the utility model.

[0022] In the figure: 1, pin; 2, hook; 3, supporting block; 4, backing plate; 5, shell pin; 6, shell; 7, first L-shaped piece; 8, fixed pin; 9, second L-shaped piece; 10, short pin; 11, partition; 12, piston rod; 13, upper cover; 14, piston; 15, cylinder barrel; 16, lower cover; 17, fork-shaped pin; 18, spring fixing block; 19, induction sheet; 20, sensor; 21, self-locking bottom plate cylinder main body. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a single hook self-locking bottom plate cylinder includes a self-locking bottom plate cylinder body 21, the top of the self-locking bottom plate cylinder body 21 is provided with a pin 1, and the bottom of the pin 1 is provided with a block 3, the middle of the pin 1 is provided with a hook 2, the bottom of the block 3 is provided with a pad 4, and the bottom of the pad 4 is provided with a shell 6, the pin 1 is inserted into the top of the block 3, and the pin 1 and the block 3 are slidingly connected, the side surface of the pin 1 is slidingly connected with the hook 2, and the end of the hook 2 close to the pin 1 penetrates the side surface of the pin 1, the end of the hook 2 away from the pin 1 is connected to the inside of the shell 6, the middle of the hook 2 is provided with a shell pin 5, and the hook 2 is connected with the shell 6 through the shell pin 5, the bottom of the block 3 is connected with the pad 4 through bolts, and the bottom of the pad 4 is in contact with the top of the shell 6, the pad 4 is connected with the shell 6 through bolts, and the pad 4 is located on one side of the top of the shell 6, the hook 2 penetrates the pad 4 and is connected to the inside of the shell 6;

[0025] The bottom of the shell 6 is provided with a piston rod 12, and the outer wall of the piston rod 12 is provided with a piston 14, the bottom of the shell 6 is provided with a partition plate 11, and the bottom of the partition plate 11 is provided with an upper cover 13, the bottom of the upper cover 13 is provided with a cylinder barrel 15, and the bottom of the cylinder barrel 15 is provided with a lower cover 16;

[0026] The front of the shell 6 is provided with a sensor 20, and the side of the sensor 20 close to the shell 6 is provided with a sensing sheet 19;

[0027] The bottom of the hook 2 is provided with a shell pin 5, the bottom end of the hook 2 is provided with a second L-shaped piece 9, one side of the second L-shaped piece 9 is provided with a first L-shaped piece 7, the middle of the first L-shaped piece 7 is provided with a fixed pin 8, the end of the first L-shaped piece 7 away from the second L-shaped piece 9 is provided with a fork pin 17, the end of the hook 2 away from the pin 1 is connected with the second L-shaped piece 9 through bolts, the second L-shaped piece 9 is located in the inside of the shell 6, the end of the second L-shaped piece 9 away from the hook 2 is connected with a short pin 10 through threads, and the second L-shaped piece 9 is connected with the first L-shaped piece 7 through the short pin 10, the first L-shaped piece 7 and the second L-shaped piece 9 are staggered and arranged in the inside of the shell 6, the middle of the first L-shaped piece 7 is provided with the fixed pin 8, and the first L-shaped piece 7 is connected with the shell 6 through the fixed pin 8, the end of the first L-shaped piece 7 away from the short pin 10 is installed with the fork pin 17, and the end of the first L-shaped piece 7 close to the fork pin 17 is provided with a sliding slot in the middle, and the fork pin 17 is slidingly connected in the sliding slot at the end of the first L-shaped piece 7, the bottom of the fork pin 17 is in contact with the top end of the piston rod 12, and the piston rod 12 is slidingly connected in the inside of the shell 6, the end of the piston rod 12 away from the fork pin 17 penetrates the shell 6 and is connected to the inside of the cylinder barrel 15, the bottom end of the piston rod 12 is installed with the piston 14, and the piston 14 is located in the inside of the cylinder barrel 15, the inside of the upper cover 13 is provided with a recess, and the inside of the recess is installed with a spring fixing block 18, the spring fixing block 18 is sleeved on the outside of the piston rod 12, the upper cover 13 is connected with the partition plate 11 through bolts, and the partition plate 11 is connected with the shell 6 through bolts, the air inlet and exhaust of the air hole of the upper cover 13 and the lower cover 16 make the piston 14 reciprocate up and down, the piston 14 drives the piston rod 12 and the fork pin 17 to reciprocate up and down, the fork pin 17 drives the first L-shaped piece 7 to rotate around the fixed pin 8, the first L-shaped piece 7 drives the second L-shaped piece 9 to swing, the second L-shaped piece 9 drives the hook 2 to realize the functions of locking and opening, effectively preventing the tool from failing under the conditions of power failure and air failure.

[0028] It needs to be explained that the utility model discloses a single hook self-locking bottom plate cylinder, when using, the piston 14 reciprocates up and down through the air hole of upper cover 13 and lower cover 16, the piston 14 drives piston rod 12 and fork pin 17 reciprocate up and down, the fork pin 17 drives first L-shaped piece 7 to rotate around fixed peg 8, the first L-shaped piece 7 drives second L-shaped piece 9 to swing, and the first L-shaped piece 7 is connected with second L-shaped piece 9 through short peg 10, and second L-shaped piece 9 drives hook 2 to realize the function of locking and opening, wherein second L-shaped piece 9 is rotatably connected with hook 2 through bolt, and the middle of hook 2 is connected in the inside of shell 6 through shell peg 5, when the bottom plate cylinder works, if the cylinder breaks gas or power, i.e. system pressure loss, the first L-shaped piece 7 and second L-shaped piece 9 form a special mechanical self-locking structure, so that hook 2 cannot move automatically, realize system self-locking, hook 2 keeps clamping state and cannot unlock automatically, and breaking gas and power do not affect clamping function. In order to meet the demand of self-locking bottom plate cylinder main body 21 for different bottom plate thicknesses and hole diameters, peg 1, hook 2 and block 3 can be replaced conveniently. The built-in sensor 20 of the clamp can transmit the two position states of hook 2 locking and opening to the whole control system in the form of electric signal when the clamp works, when hook 2 locks, the sensing sheet 19 approaches the sensing point above the sensor 20, the sensor 20 outputs locking signal outward, when hook 2 opens, the sensing sheet 19 approaches the sensing point below the sensor 20, the sensor 20 outputs opening signal outward, the whole clamp adopts high-strength aluminum alloy closed shell 6, guaranteeing system working stability and system internal cleanliness.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A single-hook self-locking base plate cylinder, comprising a self-locking base plate cylinder body (21), characterized in that: A pin (1) is provided on the top of the self-locking base plate cylinder body (21), and a support block (3) is provided at the bottom of the pin (1), a hook (2) is provided in the middle of the pin (1), a pad (4) is provided at the bottom of the support block (3), and a housing (6) is provided at the bottom of the pad (4); A piston rod (12) is provided in the middle of the bottom of the housing (6), and a piston (14) is provided on the outer wall of the piston rod (12); a partition (11) is provided at the bottom of the housing (6), and an upper cover (13) is provided at the bottom of the partition (11); a cylinder (15) is provided at the bottom of the upper cover (13), and a lower cover (16) is provided at the bottom of the cylinder (15); A sensor (20) is provided on the front of the housing (6), and a sensing sheet (19) is provided on a side of the sensor (20) close to the housing (6); A housing pin (5) is provided in the middle of the bottom of the hook (2), a second L-shaped member (9) is provided at the bottom end of the hook (2), a first L-shaped member (7) is provided on one side of the second L-shaped member (9), a fixing pin (8) is provided in the middle of the first L-shaped member (7), and a fork pin (17) is provided at one end of the first L-shaped member (7) away from the second L-shaped member (9).

2. The single-hook self-locking bottom plate cylinder according to claim 1, characterized in that: The pin (1) is inserted into the middle of the top of the support block (3), and the pin (1) is slidably connected to the support block (3). The side of the pin (1) is slidably connected to the hook (2), and the end of the hook (2) close to the pin (1) passes through the side of the pin (1). The end of the hook (2) away from the pin (1) is connected to the inside of the shell (6). A shell pin (5) is provided in the middle of the hook (2), and the hook (2) is connected to the shell (6) through the shell pin (5).

3. The single-hook self-locking bottom plate cylinder according to claim 2, characterized in that: The bottom of the support block (3) is connected to the pad (4) by bolts, and the bottom of the pad (4) is in contact with the top of the shell (6). The pad (4) is connected to the shell (6) by bolts, and the pad (4) is located on one side of the top of the shell (6). The hook (2) passes through the pad (4) and is connected to the inside of the shell (6).

4. The single-hook self-locking bottom plate cylinder according to claim 3, characterized in that: The end of the hook (2) away from the pin (1) is connected to a second L-shaped member (9) via a bolt, the second L-shaped member (9) is located inside the housing (6), the end of the second L-shaped member (9) away from the hook (2) is connected to a short pin (10) via a thread, and the second L-shaped member (9) is connected to the first L-shaped member (7) via the short pin (10), and the first L-shaped member (7) and the second L-shaped member (9) are staggeredly arranged inside the housing (6).

5. The single-hook self-locking bottom plate cylinder according to claim 4, characterized in that: A fixing pin (8) is provided in the middle of the first L-shaped member (7), and the first L-shaped member (7) is connected to the housing (6) through the fixing pin (8); a fork pin (17) is installed at one end of the first L-shaped member (7) away from the short pin (10), and a sliding groove is provided in the middle of one end of the first L-shaped member (7) close to the fork pin (17), and the fork pin (17) is slidably connected to the inside of the sliding groove at one end of the first L-shaped member (7).

6. The single-hook self-locking bottom plate cylinder according to claim 5, characterized in that: The bottom of the fork pin (17) contacts the top of the piston rod (12), and the piston rod (12) is slidably connected to the inside of the housing (6). The end of the piston rod (12) away from the fork pin (17) passes through the housing (6) and is connected to the inside of the cylinder (15). The bottom end of the piston rod (12) is equipped with a piston (14), and the piston (14) is located inside the cylinder (15).

7. The single-hook self-locking bottom plate cylinder according to claim 1, characterized in that: A groove is provided inside the upper cover (13), and a spring fixing block (18) is installed inside the groove. The spring fixing block (18) is sleeved on the outside of the piston rod (12). The upper cover (13) is connected to the partition (11) through bolts, and the partition (11) is connected to the housing (6) through bolts.

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