Telescopic clamping device

Abstract

The telescopic clamping device comprises a machine body, a driving unit, a linear transmission mechanism and a chuck connected to the machine body, the chuck comprises a first clamping piece and a second clamping piece, the driving unit and the linear transmission mechanism are connected with the machine body, and the output end of the linear transmission mechanism stretches out and draws back under driving of the driving unit; the chuck further comprises a supporting frame, a first linear driving mechanism and a second linear driving mechanism. The supporting frame is connected to the output end of the linear transmission mechanism. The first linear driving mechanism and the second linear driving mechanism are connected to the supporting frame, the first clamping piece is driven by the first linear driving mechanism, and the second clamping piece is driven by the second linear driving mechanism. And at least one of the first linear driving unit and the second linear driving unit adopts a linear module. The telescopic holding and clamping device is arranged on the edge of an automatic line to pre-position the workpiece, has good adjustable capacity and has universality for use of various types of workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a telescopic clamping device used on an automatic line. Background Art

[0002] Before assembling the indoor unit of the air conditioner, it is necessary to position the indoor unit and then complete the assembly of the components through automated equipment. There is a clamping device currently used to position the indoor unit of the air conditioner. The clamping device mainly includes a clamping head connected to the body, and the clamping head includes a first clamping member and a second clamping member arranged relatively in the clamping direction. A clamping position is formed between the first clamping member and the second clamping member. By controlling the distance between the first clamping member and the second clamping member, the clamping position can be narrowed and the indoor unit in the clamping position can be clamped and maintained at the target position.

[0003] Since the automatic line for transporting workpieces is in a continuous flow state, the position of the indoor unit will change after it flows from the current station to the next station. It is now hoped that the clamping device can be integrated into the automatic line to clamp and position the indoor unit. However, the clamping device placed directly in the middle of the automatic line will block the flow of the line. On the other hand, the automatic line may also need to assemble and transport different units of different sizes, and the current clamping device cannot be used to position multiple types of air conditioner indoor units. Utility Model Content

[0004] The utility model aims to provide a telescopic clamping device which is installed on the edge of an automatic line to pre-position a workpiece, and has good adjustable capability, so it has the versatility to be used for multiple workpieces.

[0005] The telescopic clamping device provided by the utility model includes a clamping head connected to a machine body, the clamping head includes a first clamping member and a second clamping member arranged opposite to each other in a clamping direction, and a clamping position is formed between the first clamping member and the second clamping member; the telescopic clamping device also includes a driving unit and a linear transmission mechanism, the driving unit and the linear transmission mechanism are connected to the machine body, and under the drive of the driving unit, the output end of the linear transmission mechanism can move along the telescopic direction; the clamping head also includes a supporting frame, a first linear driving mechanism and a second linear driving mechanism, and the supporting frame is connected to the output end of the linear transmission mechanism; the first linear driving mechanism and the second linear driving mechanism are connected to the supporting frame, and the first linear driving mechanism and the second linear driving mechanism are respectively located on opposite sides of the clamping direction, the first clamping member is connected to the output end of the first linear driving mechanism, and the second clamping member is connected to the output end of the second linear driving mechanism; at least one of the first linear driving unit and the second linear driving mechanism adopts a linear module.

[0006] It can be seen from the above scheme that in order to solve the problem that the clamping device is set in the automatic line and hinders the flow of workpieces, the present application adds a driving unit and a linear transmission mechanism to the clamping device. This arrangement makes the chuck retractable, and the retractable clamping device is placed on the side of the automatic line. After the workpiece is sent from the automatic line, the chuck is controlled to extend and clamp, otherwise the chuck remains in the retracted position to avoid obstructing the automatic line. In addition, in order to solve the problem of versatility, the present utility model uses an electrically driven linear module as the driving mechanism of at least one of the clamping members, so that at least one clamping member becomes an adjustable component, and the initial width and center position of the clamping position are adjustable, so it is universally applicable to different workpieces of different sizes.

[0007] A further solution is that the first linear drive unit adopts a linear module, the linear module includes a slide, and the first clamp is connected to the slide; the second linear drive mechanism adopts a cylinder, the cylinder includes a telescopic rod, and the second clamp is connected to the end of the telescopic rod.

[0008] As can be seen from the above, under this setting, the first clamping member becomes an adjustable and retainable clamping member, and the second clamping member serves as a clamping member that provides clamping force. When it is necessary to clamp a certain type of workpiece, the position of the first clamping member is first adjusted to adjust the initial width of the clamp. During the clamping process, the first clamping member remains unchanged, and the clamping action is mainly performed by the second clamping member. The cylinder body has the characteristics of reliable clamping and rapid action. Therefore, this combination enables the telescopic clamping device to have a better use effect.

[0009] A further solution is that the first clamping member includes a first plate portion and a second plate portion that are bent and connected to each other, the first plate portion is connected to the slide, the second plate portion is arranged in the clamping direction, and a reinforcing rib is connected between the first plate portion and the second plate portion; and / or, the telescopic clamping device also includes an extension frame, and the extension frame is connected between the support frame and the cylinder body along the telescopic direction.

[0010] As can be seen from the above, the linear module is larger and is more suitable for installation close to the support frame, but under this setting, the first clamping piece needs to be extended to a sufficient length to reach the position directly opposite the clamping position. Setting the first clamping piece in a bent shape and providing reinforcing ribs can improve the strength of the first clamping piece and reduce deformation. However, the cylinder body is smaller and lighter, and the cylinder body can be directly set closer to the clamping position through the extension frame. In this way, the second clamping piece is shorter, solving the deformation and strength problems.

[0011] A further solution is that the telescopic clamping device also includes a workpiece support structure, the workpiece support structure is connected to the support frame, the support structure includes a support surface, and the support surface is arranged toward the clamping position along the telescopic direction.

[0012] As can be seen from the above, when the workpiece is sent to the clamping position, the workpiece support structure can stabilize the workpiece and position the workpiece.

[0013] A further solution is that the support structure includes a roller group, and the surface of the roller group constitutes the support surface.

[0014] As can be seen from the above, under this setting, the roller group can guide the workpiece entering the clamping position and provide a certain buffering effect.

[0015] A further solution is that the first clamping member includes a first inner side facing the clamping position, and a first buffer pad is provided on the first inner side; and / or the second clamping member includes a second inner side facing the clamping position, and a second buffer pad is provided on the second inner side.

[0016] As can be seen from the above, the soft material buffer pad can prevent hard contact from damaging the workpiece.

[0017] A further solution is that the drive unit includes a motor, and the linear transmission mechanism includes a screw and a screw nut. The motor drives the screw to rotate, the screw is arranged along the telescopic direction, the screw nut is sleeved on the screw, and the support frame is fixedly connected to the screw nut.

[0018] As can be seen from the above, this setting makes the chuck movable and the forward target position controllable, and the self-locking ability of the screw mechanism can ensure that the chuck can be stabilized at the target position, ensuring positioning accuracy.

[0019] A further solution is that the telescopic clamping device also includes a slide rail assembly, which is arranged along the telescopic direction, the track of the slide rail assembly is arranged on one of the support frame and the body, and the slider of the slide rail assembly is arranged on the other of the support frame and the body.

[0020] As can be seen from the above, this setting ensures the straightness and smoothness of the chuck movement.

[0021] A further solution is that the clamping head can be moved into the machine body along the telescopic direction.

[0022] As can be seen from the above, this setting can minimize the obstruction caused by the chuck to the transportation of the automatic line.

[0023] A further solution is that the machine body includes a mask, the mask includes an opening arranged in the telescopic direction, and the mask also includes two notches respectively arranged on opposite sides of the clamping direction, and the opening and the notch are used to avoid the clamping head.

[0024] As can be seen from the above, this arrangement can ensure that the internal structure is shielded and protected, while ensuring that the forward and backward movement of the chuck is not hindered. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the first embodiment of the telescopic clamping device of the utility model.

[0026] Figure 2 This is a structural exploded view of the first embodiment of the telescopic clamping device of the utility model.

[0027] Figure 3 This is a structural diagram of the hidden body of the first embodiment of the telescopic clamping device of the utility model.

[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0029] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0030] Figure 6 It is a top view of the first use state of the first embodiment of the telescopic clamping device of the utility model.

[0031] Figure 7 It is a top view of the telescopic clamping device of the first embodiment of the utility model in the second use state.

[0032] Figure 8 It is a top view of the second embodiment of the telescopic clamping device of the utility model. DETAILED DESCRIPTION

[0033] First embodiment of the telescopic clamping device

[0034] Referring to the accompanying drawings, a unified spatial rectangular coordinate system is established in the accompanying drawings, in which the x-axis direction is the telescopic direction of the utility model, the y-axis direction is the clamping direction of the utility model, and the z-axis direction is the vertical direction.

[0035] See also Figure 1 and Figure 2 The telescopic clamping device of this embodiment includes a body 1, a clamping head 2, a driving assembly 3 and a slide rail assembly 4.

[0036] The machine body 1 comprises a body 11 and a mask 12 connected up and down. A mounting platform 13 is arranged on the top of the machine body 11 , and the mask 12 is covered on the mounting platform 13 .

[0037] Recombination Figure 3 The driving assembly 3 includes a motor 31, a belt transmission mechanism 32 and a screw mechanism 33 which are sequentially connected. The motor 31 is a driving unit of the utility model, and the screw mechanism 33 is a linear transmission mechanism of the utility model. The motor 31 is fixed below the mounting platform 13, and the output shaft of the motor 31 is coaxially connected to the driving pulley of the belt transmission mechanism 32. The driven pulley of the belt transmission mechanism 32 is located above the mounting platform.

[0038] The screw mechanism 33 includes a screw 331 and a screw nut 332. The screw 331 is rotatably supported on the mounting platform 13 along the x-axis direction. The extended end of the screw 331 is coaxially rotatably connected with the driven pulley of the belt transmission mechanism 32. The screw nut 332 is sleeved on the screw 331. In this way, the motor 31 can drive the screw nut 332 to move forward and backward along the x-axis direction when it is in operation. Among them, the screw nut 332 serves as the output end of the linear transmission mechanism of the utility model.

[0039] The slide rail assembly 4 includes two rails 41 and two sliders 42. The two rails 41 are arranged on the mounting platform 13 along the x-axis direction, and in the y-axis direction, the two rails 41 are symmetrically arranged on opposite sides of the screw rod 331. The two sliders 42 are slidably mounted on the two rails 41 respectively.

[0040] Recombination Figure 4 and Figure 5 The chuck 2 includes a first clamping member 21, a second clamping member 22, a linear module 23, a cylinder 24, an extension frame 25, a workpiece support structure 26 and a support frame 29. The linear module 23 is the first linear drive mechanism of the utility model, and the cylinder 24 is the second linear drive mechanism and cylinder body of the utility model.

[0041] See also Figure 3 The support frame 29 includes a horizontal plate 291, a vertical plate 292 and a triangular rib plate 293. The horizontal plate 291 is arranged horizontally. The vertical plate 292 is bent upward from the edge of the horizontal plate 291 in the x-axis direction. The vertical plate 292 is arranged in the x-axis direction and extends in the y-axis direction to form a long shape. The vertical plate 292 includes a front side arranged in the positive direction of the x-axis and a back side arranged in the negative direction of the x-axis. The three triangular rib plates 293 are connected between the upper surface of the horizontal plate 291 and the back side of the vertical plate 292. The screw nut 332 and the two sliders 42 are connected to the lower surface of the horizontal plate 291. In this way, when the motor 31 is in operation, it can drive the support frame 29 and the chuck 2 in which it is located to move forward and backward as a whole along the x-axis direction.

[0042] See also Figure 4 and Figure 5 The linear module 23 and the cylinder 24 are both connected to the front side of the vertical plate 292 and are arranged opposite to each other along the y-axis direction.

[0043] The linear module 23 is directly connected to the front of the vertical plate 292, and the linear module 23 is arranged along the y-axis direction, so that the slide 232 of the linear module 23 can move along the y-axis direction. The linear module 23 actually includes a driving motor 231 and a screw assembly located inside. The motor 231 drives the screw assembly to move the slide 232, and the slide 232 serves as the output end of the first linear drive mechanism of the utility model.

[0044] The cylinder 24 is connected to the front of the vertical plate 292 through an extension frame 25. The vertical plate 292, the extension frame 25 and the main body 241 of the cylinder 24 are connected in sequence along the positive direction of the x-axis, and the cylinder 24 is arranged along the y-axis direction. The telescopic rod 242 of the cylinder 24 can move along the y-axis direction, and the telescopic rod 242 serves as the output end of the second linear drive mechanism of the utility model. The "extension" in the extension frame 25 refers to increasing the length of the second clamping member 22 and the support frame 29 in the x-axis direction, that is, the telescopic direction, so as to make the second clamping member 22 reach a position farther away from the machine body.

[0045] Continue to see Figure 4 and Figure 5 The first clamping member 21 is connected to the slide 232, and the second clamping member 22 is connected to the end of the telescopic rod 242. The first clamping member 21 includes a first plate portion 211 and a second plate portion 212 that are bent and connected. The first plate portion 211 is connected to the slide 232, and the second plate portion 212 extends along the x-axis direction and is arranged in the y-axis direction. In addition, a reinforcing rib 213 is connected between the first plate portion 211 and the second plate portion 212. The second clamping member 22 is plate-shaped, and the second clamping member 22 is arranged in the y-axis direction.

[0046] The first clamping member 21 and the second clamping member 22 form a clamping position 200, the second plate portion 212 includes a first inner side facing the clamping position 200, and a first buffer pad 214 is arranged on the first inner side, the second clamping member 22 includes a second inner side facing the clamping position 200, and a second buffer pad 224 is arranged on the second inner side, and the first buffer pad 214 and the second buffer pad 224 are made of rubber or silicone material.

[0047] See also Figure 1 , Figure 2 and Figure 4 The workpiece support structure 26 is connected to the front of the vertical plate 292, and in the y-axis direction, the workpiece support structure 26 is between the first clamping member 21 and the second clamping member 22. The workpiece support structure 26 includes a roller group 261 arranged in a straight line along the y-axis direction, and the outer surfaces of the plurality of rollers on the roller group 261 constitute a support surface of the workpiece support structure 26 arranged toward the holding position 200 along the x-axis direction.

[0048] See also Figure 1 and Figure 2 The mask 12 includes an opening 1201 arranged in the x-axis direction, and the mask 12 also includes two notches 1202 arranged on opposite sides of the y-axis direction. The opening 1201 and the notch 1202 are used to avoid the chuck 2. This arrangement can ensure that the internal structure on the working platform 13 is shielded and protected, and at the same time ensure that the forward and backward movement of the chuck 2 is not hindered.

[0049] In order to solve the problem that the clamping device is set in the automatic line to hinder the flow of workpieces, a motor 31, a belt transmission assembly 32 and a screw mechanism 33 are set on the telescopic clamping device of the present application. When the motor 31 is in operation, it can drive the chuck 2 to move forward and backward as a whole along the x-axis direction, and when the chuck 2 reaches the contraction limit position, the chuck 2 enters the body 1 as a whole in the x-axis direction. In this way, the telescopic clamping device is placed next to the automatic line, and after the workpiece is sent from the automatic line, the chuck 2 is controlled to extend the clamp, otherwise the chuck 2 remains in the contraction limit position to avoid obstructing the automatic line.

[0050] In order to solve the problem of universality, the utility model adopts an electrically driven linear module 23 as the driving mechanism of the first clamping member 21, so that the first clamping member 21 becomes an adjustable component, so that the initial width and center position of the clamping position 200 are adjustable, and it is universally applicable to different workpieces of different sizes. Figure 6 and Figure 7 , Figure 6 The telescopic clamping device shown positions a first workpiece 91 having a first width. Figure 7 The telescopic clamping device shown positions the second workpiece 91 having a second width. It can be seen that the position of the first clamping member 21 can be adjusted by controlling the linear module 23, so that workpieces of different sizes can be clamped, and the center 902 of the second workpiece 92 also changes relative to the center 901 of the first workpiece 91.

[0051] In the preferred solution of the present embodiment in which the linear module and the cylinder respectively drive the two clamping members, when a certain type of workpiece needs to be clamped, the position of the first clamping member 21 is first adjusted to adjust the initial width of the clamping member. During the clamping process, the first clamping member 21 remains unchanged, and the clamping action is mainly performed by the second clamping member 22. The cylinder body has the characteristics of reliable clamping and rapid action. Therefore, this combination enables the telescopic clamping device to have a better use effect.

[0052] Also, see Figure 6 When the workpiece is sent to the clamping position 200, the workpiece support structure 26 can stabilize the workpiece 91 and position the workpiece 91. The roller group 261 can guide the workpiece 91 entering the clamping position 200 and provide a certain buffering effect.

[0053] Second embodiment of the telescopic clamping device

[0054] See also Figure 8 In this embodiment, the first linear drive mechanism 53 for driving the first clamping member and the second linear drive mechanism 54 for driving the second clamping member both adopt linear modules. The workpiece support structure adopts a support plate 55.

[0055] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A telescopic clamping device, comprising a body connected to a clamping head on the body, the clamping head comprising a first clamping member and a second clamping member arranged opposite to each other in a clamping direction, a clamping position being formed between the first clamping member and the second clamping member; Features: The telescopic clamping device further comprises a driving unit and a linear transmission mechanism, wherein the driving unit and the linear transmission mechanism are connected to the machine body, and under the driving of the driving unit, the output end of the linear transmission mechanism can move along the telescopic direction; The chuck further comprises a support frame, a first linear drive mechanism and a second linear drive mechanism, wherein the support frame is connected to an output end of the linear drive mechanism; The first linear drive mechanism and the second linear drive mechanism are connected to the support frame, and the first linear drive mechanism and the second linear drive mechanism are respectively located on opposite sides of the clamping direction, the first clamping member is connected to the output end of the first linear drive mechanism, and the second clamping member is connected to the output end of the second linear drive mechanism; At least one of the first linear drive mechanism and the second linear drive mechanism adopts a linear module.

2. The telescopic clamping device according to claim 1, characterized in that: The first linear drive mechanism adopts a linear module, the linear module includes a slide, and the first clamping member is connected to the slide; The second linear drive mechanism adopts a cylinder body, the cylinder body includes a telescopic rod, and the second clamping member is connected to the end of the telescopic rod.

3. The telescopic clamping device according to claim 2, characterized in that: The first clamping member includes a first plate portion and a second plate portion that are connected by bending, the first plate portion is connected to the slide, the second plate portion is arranged toward the clamping direction, and a reinforcing rib is connected between the first plate portion and the second plate portion; and / or, The telescopic clamping device also includes an extension frame, and along the telescopic direction, the extension frame is connected between the support frame and the cylinder body.

4. The telescopic clamping device according to any one of claims 1 to 3, characterized in that: The telescopic clamping device also includes a workpiece support structure, which is connected to the support frame. The support structure includes a support surface, and the support surface is arranged toward the clamping position along the telescopic direction.

5. The telescopic clamping device according to claim 4, characterized in that: The supporting structure comprises a roller group, and the surface of the roller group constitutes the supporting surface.

6. The telescopic clamping device according to any one of claims 1 to 3, characterized in that: The first clamping member includes a first inner side facing the clamping position, and a first buffer pad is arranged on the first inner side; and / or the second clamping member includes a second inner side facing the clamping position, and a second buffer pad is arranged on the second inner side.

7. The telescopic clamping device according to any one of claims 1 to 3, characterized in that: The driving unit includes a motor, and the linear transmission mechanism includes a screw and a screw nut. The motor drives the screw to rotate. The screw is arranged along the telescopic direction. The screw nut is sleeved on the screw, and the support frame is fixedly connected to the screw nut.

8. The telescopic clamping device according to any one of claims 1 to 3, characterized in that: The telescopic clamping device also includes a slide rail assembly, which is arranged along the telescopic direction, a track of the slide rail assembly is arranged on one of the support frame and the body, and a slider of the slide rail assembly is arranged on the other of the support frame and the body.

9. The telescopic clamping device according to any one of claims 1 to 3, characterized in that: The clamping head can be moved into the body along the telescopic direction.

10. The telescopic clamping device according to claim 9, characterized in that: The machine body comprises a mask, the mask comprises an opening arranged in the telescopic direction, and the mask further comprises two notches respectively arranged on opposite sides of the clamping direction, and the opening and the notch are used to avoid the clamping head.

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