Clamping arm for machining

Abstract

The utility model relates to the technical field of machining, in particular to a clamping arm for machining, which comprises a support, an adjusting mechanism and a rotating component, the adjusting mechanism is mounted on the upper surface of the support, a hydraulic cylinder is mounted on a moving portion of the adjusting mechanism, a clamping mechanism is arranged below the hydraulic cylinder, and the rotating component is mounted on the clamping mechanism. The rotating assembly is arranged at the driving end of the hydraulic air cylinder. And the rotating assembly comprises a connecting unit, the connecting unit comprises a positioning block, the positioning block is fixedly connected with the driving end of the hydraulic air cylinder, and the lower surface of the positioning block is fixedly connected with a T-shaped connecting shaft. According to the device, the rotating assembly is arranged, so that the device can adjust the position of the clamped workpiece, the problems that when the device works in a single direction, the device is difficult to adapt to workpieces in different position states, and the position states of the workpieces are not easy to adjust are solved, and the applicability of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a clamping arm for mechanical processing. Background Art

[0002] Machining refers to the process of changing the shape, size or performance of a workpiece through a mechanical device. Machining plays a vital role in the manufacturing industry. It is the basic link of modern industrial production and promotes the development and progress of various industries. With the development of the times, during the process of machining, the connecting production enterprises will use the clamping arm to clamp the workpiece to facilitate the picking up of the workpiece or adjust the position of the workpiece, thereby increasing the production efficiency of the production enterprises.

[0003] Prior art, such as the utility model with publication number CN219337766U, discloses a clamping arm for machining, which adopts a bottom plate, wherein two bottom plates are provided, and the top ends of the two bottom plates are fixedly connected with electric telescopic rods, and the telescopic ends of the two electric telescopic rods are fixedly connected with an adjusting device, and the lower end of the adjusting device is connected with a clamping assembly; the clamping assembly includes a fixed rod, and a movable groove is opened at the lower end of the fixed rod, and one end of the fixed rod is connected with a first motor, and a bidirectional threaded rod is rotatably connected to the inner wall of one side of the fixed rod, and The output end of the first motor extends into the fixed rod and is fixedly connected to the bidirectional threaded rod. The utility model can facilitate stable and convenient clamping of the workpiece by setting a clamping assembly, so that the practicality of the clamping arm is higher, and under the action of the adjusting device, the position of the clamping assembly can be easily adjusted, so that the clamping arm is more flexible when working, which solves the problem that the existing clamping arm is not convenient and stable when clamping the workpiece, making the practicality of the entire clamping arm low. At the same time, the clamping assembly in the clamping arm is inconvenient to adjust the position, which reduces the flexibility of the entire clamping arm when working.

[0004] In the process of clamping the workpiece with the help of the clamping arm, there are existing clamping arm structures such as the above-mentioned ones whose adjustment structures are all designed on the same straight line. Since the state of the workpiece after processing is relatively complicated, when only the clamping arm in the same direction is used for work, it is difficult to apply to workpieces in different states. At the same time, since some workpieces need to change their own position state after being clamped by the clamping arm, it is difficult to implement the adjustment operation of the workpiece when the clamping arm in a single direction works, which leads to the problem of poor applicability of the clamping arm. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art at least to a certain extent, and proposes a clamping arm for mechanical processing.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a clamping arm for machining, comprising a bracket, an adjustment mechanism and a rotating assembly, wherein the adjustment mechanism is installed on the upper surface of the bracket, a hydraulic cylinder is installed on the moving part of the adjustment mechanism, a clamping mechanism is arranged below the hydraulic cylinder, and the rotating assembly is arranged at the driving end of the hydraulic cylinder;

[0007] The rotating assembly includes a connection unit, and the connection unit includes a positioning block, the positioning block is fixedly connected to the driving end of the hydraulic cylinder, the lower surface of the positioning block is fixedly connected to a T-shaped connecting shaft, the lower surface of the T-shaped connecting shaft is rotatably connected to a limiting sleeve, the limiting sleeve is fixedly connected to the upper surface of the clamping mechanism, the lower surface of the T-shaped connecting shaft is fixedly connected to a restraining pin, the inner wall of the limiting sleeve is provided with a guide groove, and the restraining pin is slidably connected to the inner wall of the guide groove;

[0008] The rotating assembly also includes a driving unit, which includes a mounting plate, the mounting plate is fixedly connected to the side surface of the hydraulic cylinder, the side surface of the mounting plate is fixedly connected to a servo motor, the driving end of the servo motor is rotatably connected to a rotating shaft, the surface of the rotating shaft is bolted with a reinforcement sleeve, the lower surface of the reinforcement sleeve is fixedly connected to a transmission gear, the outer circumference of the limiting sleeve is fixedly connected to a driven gear ring, and the driven gear ring is meshed with the tooth groove of the transmission gear.

[0009] Preferably, a stabilizing ring is fixedly connected to the lower surface of the positioning block, a sliding groove is provided on the upper surface of the limiting sleeve, and the stabilizing ring is rotatably connected to the inner wall of the sliding groove. The stabilizing ring installed under the positioning block can cooperate with the sliding groove to constrain the position of the positioning block to increase the stability of the positioning block and the limiting sleeve in a rotating state.

[0010] Preferably, the positioning block abuts against the upper surface of the limiting sleeve, and the positioning block installed at the driving end of the hydraulic cylinder can cooperate with the limiting sleeve to connect the hydraulic cylinder and the clamping mechanism to ensure that the hydraulic cylinder can drive the clamping mechanism to adjust in the up and down directions.

[0011] Preferably, the number of the restraining pins is two, and the two restraining pins are arranged in a circular array about the T-shaped connecting shaft. The number of the guide grooves matches the restraining pins. By installing the restraining pins under the T-shaped connecting shaft, the maximum rotation angle of the limit sleeve can be constrained in cooperation with the guide groove to reduce the probability of excessive rotation of the limit sleeve.

[0012] Preferably, the rotating shaft is in contact with the upper surface of the transmission gear, and the servo motor and the transmission gear can be connected by the rotating shaft installed at the driving end of the servo motor, so that the servo motor can synchronously drive the transmission gear to rotate when working.

[0013] Preferably, the transmission gear abuts against the upper surface of the clamping mechanism, and the driven gear ring abuts against the upper surface of the clamping mechanism. Through the cooperation of the transmission gear and the driven gear ring, the limit ring can be driven to rotate under the drive of the servo motor, so that the limit ring can rotate the clamping mechanism.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] In the utility model, by setting a rotating component, when clamping the workpiece, the control adjustment mechanism is operated, and the clamping mechanism is moved to the top of the workpiece in cooperation with the hydraulic cylinder, and the hydraulic cylinder is operated. The hydraulic cylinder pushes the clamping mechanism, and the clamping mechanism is sleeved onto the surface of the workpiece during the movement, and then the clamping mechanism is controlled to work, and the clamping mechanism is energized to clamp the workpiece. After the clamping operation is completed, the clamping arm can be controlled to lift the workpiece; when the position state of the workpiece needs to be adjusted, the switch of the servo motor is turned on, and the servo motor is energized to drive the rotating shaft, and the rotating shaft cooperates with the reinforcement sleeve to drive the transmission under the action of the servo motor. The driven gear enables the transmission gear to mesh with the driven gear ring. The driven gear ring drives the limiting sleeve under the action of the transmission gear. The limiting sleeve drives the clamping mechanism to rotate under the guidance of the T-shaped connecting shaft and the restraining pin. The clamping mechanism drives the workpiece to rotate, thereby realizing the adjustment operation of the position state of the workpiece. By setting the rotating component, the equipment can adjust the position of the workpiece after clamping, thereby reducing the problem that when the equipment adopts a single direction working, it is difficult to apply to workpieces in different position states and is not conducive to adjusting the position state of the workpiece, and further improves the applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a clamping arm for mechanical processing is proposed for the utility model;

[0017] Figure 2 The utility model provides a schematic diagram of the structure of a clamping arm for machining from a bottom view;

[0018] Figure 3 The utility model proposes a clamping arm for mechanical processing Figure 2 Schematic diagram of the structure at A in the middle;

[0019] Figure 4 The utility model provides a schematic diagram of the structure of a rotating assembly of a clamping arm for machining;

[0020] Figure 5 The utility model provides a partial structural schematic diagram of a rotating assembly of a clamping arm for machining;

[0021] Figure 6 The utility model proposes a clamping arm for mechanical processing Figure 5 Front view.

[0022] Legend:

[0023] 1. Bracket; 2. Adjustment mechanism; 3. Hydraulic cylinder; 4. Clamping mechanism; 5. Rotating assembly; 51. Connecting unit; 511. Positioning block; 512. T-shaped connecting shaft; 513. Limiting sleeve; 514. Restraining pin; 515. Guide groove; 516. Stabilizing ring; 517. Slide groove; 52. Driving unit; 521. Mounting plate; 522. Servo motor; 523. Rotating shaft; 524. Reinforcement sleeve; 525. Transmission gear; 526. Driven gear ring. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 6 The utility model provides a technical solution: a clamping arm for mechanical processing, including a bracket 1, an adjusting mechanism 2 and a rotating assembly 5, the adjusting mechanism 2 is installed on the upper surface of the bracket 1, the moving part of the adjusting mechanism 2 is installed with a hydraulic cylinder 3, a clamping mechanism 4 is arranged below the hydraulic cylinder 3, and the rotating assembly 5 is arranged at the driving end of the hydraulic cylinder 3.

[0025] In this embodiment: the rotating assembly 5 includes a connection unit 51, and the connection unit 51 includes a positioning block 511, the positioning block 511 is fixedly connected to the driving end of the hydraulic cylinder 3, the lower surface of the positioning block 511 is fixedly connected to a T-shaped connecting shaft 512, the lower surface of the T-shaped connecting shaft 512 is rotatably connected to a limiting sleeve 513, the limiting sleeve 513 is fixedly connected to the upper surface of the clamping mechanism 4, the lower surface of the T-shaped connecting shaft 512 is fixedly connected to a restraining pin 514, the inner wall of the limiting sleeve 513 is provided with a guide groove 515, and the restraining pin 514 is slidably connected to the inner wall of the guide groove 515;

[0026] The rotating assembly 5 also includes a driving unit 52, which includes a mounting plate 521, which is fixedly connected to the side surface of the hydraulic cylinder 3, and a servo motor 522 is fixedly connected to the side surface of the mounting plate 521. The driving end of the servo motor 522 is rotatably connected to a rotating shaft 523, and a reinforcing sleeve 524 is bolted to the surface of the rotating shaft 523. A transmission gear 525 is fixedly connected to the lower surface of the reinforcing sleeve 524, and a driven gear ring 526 is fixedly connected to the outer circumference of the limiting sleeve 513, and the driven gear ring 526 is meshed with the tooth groove of the transmission gear 525.

[0027] Specifically, a stabilizing ring 516 is fixedly connected to the lower surface of the positioning block 511, a sliding groove 517 is opened on the upper surface of the limiting sleeve 513, and the stabilizing ring is rotatably connected to the inner wall of the sliding groove 517. The stabilizing ring 516 installed under the positioning block 511 can cooperate with the sliding groove 517 to constrain the position of the positioning block 511 to increase the stability of the positioning block 511 and the limiting sleeve 513 in the rotating state.

[0028] Specifically, the positioning block 511 abuts against the upper surface of the limiting sleeve 513 .

[0029] In this embodiment: by installing the positioning block 511 at the driving end of the hydraulic cylinder 3, the limiting sleeve 513 can be used to connect the hydraulic cylinder 3 and the clamping mechanism 4 to ensure that the hydraulic cylinder 3 can drive the clamping mechanism 4 to adjust in the up and down directions.

[0030] Specifically, there are two restraining pins 514, which are arranged in a circular array about the T-shaped connecting shaft 512. The number of guide grooves 515 matches the restraining pins 514. By installing the restraining pins 514 under the T-shaped connecting shaft 512, the maximum rotation angle of the limiting sleeve 513 can be constrained in cooperation with the guide grooves 515 to reduce the probability of excessive rotation of the limiting sleeve 513.

[0031] In this embodiment, the rotating shaft 523 abuts against the upper surface of the transmission gear 525 .

[0032] In this embodiment, the servo motor 522 and the transmission gear 525 can be connected by the rotating shaft 523 installed at the driving end of the servo motor 522, so that the servo motor 522 can synchronously drive the transmission gear 525 to rotate when working.

[0033] Specifically, the transmission gear 525 abuts against the upper surface of the clamping mechanism 4, and the driven gear ring 526 abuts against the upper surface of the clamping mechanism 4. Through the cooperation of the transmission gear 525 and the driven gear ring 526, the limit ring can be driven to rotate under the drive of the servo motor 522, so that the limit ring can rotate the clamping mechanism 4.

[0034] Working principle: when clamping the workpiece, the control adjustment mechanism 2 works, and the hydraulic cylinder 3 is cooperated to move the clamping mechanism 4 to the top of the workpiece, and the hydraulic cylinder 3 is operated. The hydraulic cylinder 3 pushes the clamping mechanism 4, and the clamping mechanism 4 is sleeved on the surface of the workpiece during the movement, and then the clamping mechanism 4 is controlled to work, and the clamping mechanism 4 is energized to clamp the workpiece. After the clamping operation is completed, the clamping arm can be controlled to lift the workpiece; when the position state of the workpiece needs to be adjusted, the switch of the servo motor 522 is turned on, and the servo motor 522 is energized to drive the rotating shaft 523. The rotating shaft 523 cooperates with the reinforcement sleeve to drive the transmission gear 525 under the action of the servo motor 522, so that the transmission gear 525 is meshed with the driven gear ring 526. The driven gear ring 526 drives the limiting sleeve 513 under the action of the transmission gear 525. The limiting sleeve 513 drives the clamping mechanism 4 to rotate under the guidance of the T-shaped connecting shaft 512 and the restraining pin 514, and the clamping mechanism 4 drives the workpiece to rotate, thereby realizing the adjustment operation of the position state of the workpiece.

Claims

1. A clamping arm for machining, comprising a bracket (1), an adjustment mechanism (2) and a rotating assembly (5), characterized in that: The adjusting mechanism (2) is mounted on the upper surface of the bracket (1); a hydraulic cylinder (3) is mounted on the movable part of the adjusting mechanism (2); a clamping mechanism (4) is arranged below the hydraulic cylinder (3); and the rotating assembly (5) is arranged at the driving end of the hydraulic cylinder (3); The rotating assembly (5) comprises a connection unit (51), the connection unit (51) comprises a positioning block (511), the positioning block (511) is fixedly connected to the driving end of the hydraulic cylinder (3), the lower surface of the positioning block (511) is fixedly connected to a T-shaped connecting shaft (512), the lower surface of the T-shaped connecting shaft (512) is rotatably connected to a limiting sleeve (513), the limiting sleeve (513) is fixedly connected to the upper surface of the clamping mechanism (4), the lower surface of the T-shaped connecting shaft (512) is fixedly connected to a restraining pin (514), the inner wall of the limiting sleeve (513) is provided with a guide groove (515), and the restraining pin (514) is slidably connected to the inner wall of the guide groove (515).

2. A clamping arm for machining according to claim 1, characterized in that: The rotating assembly (5) also includes a driving unit (52), the driving unit (52) including a mounting plate (521), the mounting plate (521) being fixedly connected to the side surface of the hydraulic cylinder (3), the side surface of the mounting plate (521) being fixedly connected to a servo motor (522), the driving end of the servo motor (522) being rotatably connected to a rotating shaft (523), the surface of the rotating shaft (523) being bolted with a reinforcing sleeve (524), the lower surface of the reinforcing sleeve (524) being fixedly connected to a transmission gear (525), the outer circumference of the limiting sleeve (513) being fixedly connected to a driven gear ring (526), ​​the driven gear ring (526) being meshed with the tooth groove of the transmission gear (525).

3. A clamping arm for machining according to claim 2, characterized in that: The rotating shaft (523) is in contact with the upper surface of the transmission gear (525).

4. A clamping arm for machining according to claim 2, characterized in that: The transmission gear (525) abuts against the upper surface of the clamping mechanism (4), and the driven gear ring (526) abuts against the upper surface of the clamping mechanism (4).

5. The clamping arm for machining according to claim 1, characterized in that: The lower surface of the positioning block (511) is fixedly connected with a stabilizing ring (516), the upper surface of the limiting sleeve (513) is provided with a sliding groove (517), and the stabilizing ring (516) is rotatably connected to the inner wall of the sliding groove (517).

6. A clamping arm for machining according to claim 1, characterized in that: The positioning block (511) abuts against the upper surface of the limiting sleeve (513).

7. The clamping arm for machining according to claim 1, characterized in that: The number of the restraining pins (514) is two, and the two restraining pins (514) are arranged in a circular array about the T-shaped connecting shaft (512), and the number of the guiding grooves (515) matches the restraining pins (514).

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