Linear motion cylinder to bidirectional horizontal motion mechanism

Abstract

The utility model discloses a linear motion conversion bidirectional horizontal movement mechanism of cylinder relates to C type workpiece clamping structure technical field, including clamping mechanism and with the fixed connection of mobile assembly of clamping mechanism, and clamping mechanism is by installation base, drive part and positioning part, and installation base is base, and drive part and positioning part all set up on installation base, drive part adopts cylinder drive connector and drive board to do linear motion, utilizes the cooperation of fixed pin of drive board two sides inclined groove and slider, and the linear motion of cylinder is converted into two groups slider's bidirectional synchronous horizontal motion, thereby realizes the clamping and loosening of workpiece, positioning part is equipped with positioning frame and inductor, and the workpiece is ensured to be in position detection and accurate positioning, mobile assembly realizes the flexible adjustment of clamping mechanism whole position through the sliding fit of rotating frame and fixed shaft, and the whole structure is compact, and motion conversion is efficient, and positioning accuracy is high, and effectively adapts the narrow space of C type workpiece and avoids interference.

Description

Technical Field

[0001] This utility model relates to the technical field of C-type workpiece clamping structure, specifically to a cylinder linear motion conversion bidirectional lateral motion mechanism. Background Technology

[0002] In the field of mechanical manufacturing, fixtures are an indispensable piece of process equipment. Their function is to fix and position the workpiece, ensuring it maintains the correct position during machining to guarantee the dimensional accuracy and geometric tolerances of the machined parts. The rationality of fixture design directly affects the product's machining quality, production efficiency, and manufacturing cost. Currently, in the design of fixtures used to hold small C-shaped workpieces, other positioning mechanisms (such as auxiliary positioning blocks, limit components, etc.) are usually required around the C-shaped workpiece. At the same time, sufficient operating space must be reserved for machining tools such as milling cutters and drills to avoid interference between the fixture and the positioning mechanism or machining tools.

[0003] However, existing fixture designs generally face a dilemma: on the one hand, some solutions simplify the fixture structure to increase clearance space, resulting in a decrease in the fitting accuracy between the locating pin and the workpiece locating hole, making it impossible to achieve precise positioning of the machined object, easily causing machining errors and affecting part quality; on the other hand, other solutions adopt complex positioning structures to ensure the positioning accuracy of the locating pin, but this results in an increase in the overall size of the fixture and structural redundancy, making it difficult to adapt to the narrow installation space on both sides of small-sized C-shaped workpieces. Based on this, this solution provides a cylinder linear motion conversion bidirectional lateral motion mechanism to solve the above-mentioned problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, a mechanism for converting linear motion of a cylinder into bidirectional lateral motion is provided. This technical solution solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The cylinder linear motion conversion bidirectional lateral motion mechanism includes a clamping mechanism and a moving component fixedly connected to the clamping mechanism. The clamping mechanism consists of a mounting base, a drive unit, and a positioning unit. The mounting base is a base, and both the drive unit and the positioning unit are mounted on the mounting base. The drive unit has two sets of sliding seats that slide on the mounting base, and a cylinder fixedly mounted on the mounting base. A slider is fixedly mounted on each of the two sets of sliding seats. The output shaft of the cylinder is fixedly connected to a connector. A drive plate for driving the slider is fixedly connected to the outside of the connector. A clamping part for clamping is fixedly connected to the outer end of each slider.

[0006] Preferably, the two sides of the drive plate are slidably connected to the sliders on both sides, and two sets of drive grooves are symmetrically opened on the sliders. Each set of sliders is fixedly connected with a fixing pin, and the two sets of fixing pins are slidably arranged in the two sets of drive grooves.

[0007] Preferably, the clamping part includes connecting arms that are fixedly connected to the sliders on both sides respectively. Each connecting arm is fixedly connected to a mounting bracket, and each mounting bracket is fixedly connected to a clamping frame on its lower side. Each clamping frame has a positioning pin fixedly connected to one end facing the other.

[0008] Preferably, the mounting base includes a base plate, a slide rail is fixedly mounted on the upper center of the base plate, two sets of sliding seats are symmetrically slidably mounted on the slide rail, and side plates are fixedly mounted on the base plate on both sides of the slide rail, and a top plate is fixedly connected to the top of each side plate; an L-shaped connecting frame is fixedly connected to the left end of the base plate, and mounting arms are fixedly connected to both the front and rear sides of the L-shaped connecting frame, and both mounting arms are fixedly connected to the positioning part.

[0009] Preferably, the positioning unit includes two sets of mounting brackets 2, which are respectively fixedly connected to two sets of mounting arms. A positioning bracket is fixedly installed at the lower end of the mounting bracket 2, and a sensor is fixedly installed on one of the positioning brackets.

[0010] Preferably, the movable component includes a fixed frame and a fixed plate fixedly connected to the right end of the cylinder. A telescopic rod is fixedly connected between the fixed frame and the fixed plate, and a rotating frame is rotatably mounted on the fixed frame. A connecting seat is fixedly connected to the fixed plate, and the connecting seat is slidably connected to the rotating frame. A fixed shaft is fixedly connected to the inner side of the connecting seat, and a sliding groove for sliding with the fixed shaft is provided through the rotating frame.

[0011] Compared with the prior art, the present invention proposes a cylinder linear motion conversion bidirectional lateral motion mechanism, which has the following beneficial effects: 1. In this utility model, the driving unit uses a motion conversion structure of "slanted groove driving fixed pin, thereby driving two sets of sliders to move laterally in both directions". That is, the linear extension and retraction motion of the cylinder is converted into the bidirectional lateral motion of the slider through a mechanical structure. Bidirectional lateral clamping can be achieved without simplifying the positioning components. The overall structure has a high degree of integration. The cylinder, driving plate and slider are all integrated into the mounting base, with no redundant volume, which can effectively adapt to the narrow space on both sides of small C-shaped workpieces.

[0012] 2. In this utility model, the guide rail for the slider, the symmetrical arrangement of the clamping frame, and the rigid connection between the positioning pin and the clamping frame ensure that the workpiece position does not shift during the clamping process, thus guaranteeing the machining dimensional accuracy. At the same time, the sensor in the positioning part can detect the workpiece position in real time, preventing "empty clamping" or "misaligned clamping", reducing the machining scrap rate, and further improving the process stability.

[0013] 3. This utility model is provided with a movable component. The fixed frame in the movable component is fixedly connected to the external frame. Through the cooperation of the telescopic rod, the rotating frame and the connecting seat, the overall position of the clamping mechanism can be flexibly adjusted. It can adapt to the space requirements of different installation scenarios without changing the clamp. At the same time, by adjusting the position of the clamping mechanism, path interference with surrounding positioning mechanisms and processing tools can be effectively avoided. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the clamping mechanism in this utility model; Figure 3 This is a schematic diagram of the structure of the mounting base and positioning part in this utility model; Figure 4 This is a schematic diagram of the structure of the mounting base and the drive unit in this utility model; Figure 5 This is a top view of the drive unit in this utility model. Figure 6 This is a schematic diagram of the structure of the mobile component in this utility model; The numbers on the map are: 1. Clamping mechanism; 2. Moving component 11. Mounting base; 111. Base plate; 112. Side plate; 113. Top plate; 114. Slide rail; 115. L-shaped connecting bracket; 116. Mounting arm; 12. Drive unit; 121. Cylinder; 122. Connector; 123. Drive plate; 124. Drive slant; 125. Slider; 126. Fixing pin; 127. Sliding seat; 128. Connecting arm; 129. Mounting bracket one; 1210. Clamping bracket; 1211. Positioning pin; 13. Positioning unit; 131. Mounting bracket two; 132. Positioning bracket; 133. Sensor; 201. Fixed frame; 202. Fixed plate; 203. Rotating frame; 204. Slide groove; 205. Connecting seat; 206. Fixed shaft; 207. Telescopic rod. Detailed Implementation

[0015] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0016] Reference Figure 1-2As shown, the cylinder linear motion conversion bidirectional lateral motion mechanism includes a clamping mechanism 1 and a moving component 2 fixedly connected to the clamping mechanism 1. The clamping mechanism 1 consists of a mounting base 11, a driving part 12 and a positioning part 13. The mounting base 11 is a base, and the driving part 12 and the positioning part 13 are both set on the mounting base 11. Reference Figure 4 As shown, specifically in this embodiment, the drive unit 12 is provided with two sets of sliding seats 127 that slide on the mounting base 11, and a cylinder 121 that is fixedly installed on the mounting base 11. A slider 125 is fixedly installed on each of the two sets of sliding seats 127. The output shaft of the cylinder 121 is fixedly connected to a connector 122. A drive plate 123 for driving the slider 125 is fixedly connected to the outside of the connector 122. A clamping part for clamping is fixedly connected to the outer end of the slider 125.

[0017] Furthermore, the drive unit 12 drives the fixed pin 126 through the drive groove 124, which in turn drives the two sets of sliders 125 to move laterally in both directions. That is, the linear extension and retraction motion of the cylinder 121 is converted into the bidirectional lateral motion of the slider 125 through the mechanical structure. Bidirectional lateral clamping can be achieved without simplifying the positioning components. The overall structure has a high degree of integration. The cylinder 121, drive plate 123, and slider 125 are all integrated into the mounting base 11, with no redundant volume, which can effectively adapt to the narrow space on both sides of small C-shaped workpieces.

[0018] Reference Figure 4-5 As shown, specifically in this embodiment, the two sides of the drive plate 123 are slidably connected to the sliders 125 on both sides, and two sets of drive grooves 124 are symmetrically opened on the sliders 125. Fixing pins 126 are fixedly connected to both sets of sliders 125, and the two sets of fixing pins 126 are slidably arranged in the two sets of drive grooves 124 respectively.

[0019] Furthermore: using cylinder 121 as a power source, its output shaft extends and retracts along the axial direction, driving the connector 122 fixed thereto to move linearly in sync, thereby driving the drive plate 123 fixedly connected to the connector 122 to move together; during the movement, the two sides of the drive plate 123 cooperate with the fixed pin 126 through the drive groove 124, thereby driving the slider 125 to slide, so that the two sets of sliders 125 slide in both directions along the slide rail 114 of the mounting base 11. That is, the linear extension and retraction motion of cylinder 121 is converted into the bidirectional lateral motion of slider 125 through the mechanical structure. When cylinder 121 extends, slider 125 separates in opposite directions, and when cylinder 121 retracts, slider 125 moves towards each other.

[0020] Reference Figure 4-5As shown, specifically in this embodiment, the clamping part includes connecting arms 128 that are fixedly connected to the sliders 125 on both sides respectively. Each connecting arm 128 is fixedly connected to a mounting bracket 129. Each mounting bracket 129 is fixedly connected to a clamping bracket 1210 on its lower side. Each clamping bracket 1210 is fixedly connected to a positioning pin 1211 at one end facing each other.

[0021] Furthermore, the slider 125 is fixedly connected to the connecting arm 128. The bidirectional lateral movement of the slider 125 drives the connecting arm 128, the mounting bracket 129, and the clamping frame 1210 to move synchronously, ultimately cooperating with the positioning pin 1211 on the clamping frame 1210 to clamp or release the workpiece. Simultaneously, the guiding effect of the slide rail 114 on the slider 125, the symmetrical arrangement of the clamping frame 1210, and the rigid connection between the positioning pin 1211 and the clamping frame 1210 ensure that the workpiece position does not shift during clamping, guaranteeing machining dimensional accuracy. At the same time, the two sets of sliders 125 are synchronized through symmetrically arranged drive grooves 124, ensuring balanced force on the workpiece and avoiding positioning offset caused by unilateral clamping, further guaranteeing positioning accuracy.

[0022] Reference Figure 3 As shown, specifically in this embodiment, the mounting base 11 includes a base plate 111. A slide rail 114 is fixedly mounted on the upper middle part of the base plate 111. Two sets of sliding seats 127 are symmetrically slidably mounted on the slide rail 114. Side plates 112 are fixedly mounted on the base plate 111 on both sides of the slide rail 114. A top plate 113 is fixedly connected to the top of each side plate 112. An L-shaped connecting frame 115 is fixedly connected to the left end of the base plate 111. Mounting arms 116 are fixedly connected to both the front and rear sides of the L-shaped connecting frame 115. Both mounting arms 116 are fixedly connected to the positioning part 13.

[0023] Furthermore, the base plate 111, side plate 112, and top plate 113 cooperate to form a stable base, providing a stable mounting base for the drive unit 12 and the positioning unit 13. The slide rail 114 provides precise guidance for the slider 125, ensuring the straightness of the slider 125's lateral movement. The L-shaped connecting frame 115 and the mounting arm 116 provide fixed support for the positioning unit 13, ensuring the positional matching between positioning detection and clamping action.

[0024] Reference Figure 3 As shown, specifically in this embodiment, the positioning unit 13 includes two sets of mounting brackets 131 that are fixedly connected to the two sets of mounting arms 116 respectively. A positioning bracket 132 is fixedly installed at the lower end of the mounting bracket 131, and a sensor 133 is fixedly installed on one of the positioning brackets 132.

[0025] Furthermore: The positioning frame 132 fixed by the mounting bracket 2 131 provides an auxiliary positioning reference for the workpiece, and the sensor 133 realizes the detection of the workpiece in place, preventing clamping misalignment caused by the workpiece not being properly positioned, improving clamping reliability, reducing the processing scrap rate, and further improving process stability. The sensor 133 model can be azbil K1G-S07 / K1G-S15, no specific requirements are made, as long as it meets the production requirements.

[0026] Reference Figure 6 As shown, specifically in this embodiment, the moving component 2 includes a fixed frame 201 and a fixed plate 202 fixedly connected to the right end of the cylinder 121. A telescopic rod 207 is fixedly connected between the fixed frame 201 and the fixed plate 202, and a rotating frame 203 is rotatably mounted on the fixed frame 201. A connecting seat 205 is fixedly connected to the fixed plate 202. The connecting seat 205 is slidably connected to the rotating frame 203, and a fixed shaft 206 is fixedly connected to the inner side of the connecting seat 205. A sliding groove 204 is provided through the rotating frame 203 to cooperate with the sliding of the fixed shaft 206.

[0027] Furthermore, in the movable component 2, the fixed frame 201 is fixedly connected to the external frame. By pulling the rotating frame 203, the rotating frame 203 slides in the slide groove 204 through the fixed shaft 206, thereby driving the connecting seat 205 to move. The connecting seat 205 then drives the clamping mechanism 1 to move as a whole through the cooperation of the fixed plate 202 and the telescopic rod 207, so as to flexibly adjust the overall position of the clamping mechanism 1. It can adapt to the space requirements of different installation scenarios without changing the clamps. At the same time, by adjusting the position of the clamping mechanism 1, path interference with surrounding positioning mechanisms and processing tools can be effectively avoided.

[0028] The working principle of this utility model is as follows: When the clamping mechanism 1 is in use, the cylinder 121 serves as the power source, driving its output shaft to extend and retract along the axial direction, which in turn drives the connector 122 fixed thereto to move linearly in sync, thereby driving the drive plate 123 fixedly connected to the connector 122 to move as a whole; during the movement, the two sides of the drive plate 123 cooperate with the fixed pin 126 through the drive groove 124, thereby driving the slider 125 to slide, so that the two sets of sliders 125 slide in both directions along the slide rail 114 of the mounting base 11. That is, the linear extension and retraction motion of the cylinder 121 is converted into the bidirectional lateral motion of the slider 125 through the mechanical structure. When the cylinder 121 extends, the sliders 125 separate in opposite directions, and when the cylinder 121 retracts, the sliders 125 move towards each other. When the cylinder 121 extends, the two sliders 125 on both sides separate in opposite directions, and the two sliders 125 on both sides are fixedly connected to the connecting arm 128. The bidirectional lateral movement of the sliders 125 drives the connecting arm 128, the mounting bracket 129 and the clamping bracket 1210 to move synchronously, thereby driving the clamping bracket 1210 and the positioning pin 1211 to move in opposite directions. At this time, it is convenient for the C-shaped workpiece to enter the positioning bracket 132 of the positioning part 13. When the sensor 133 on the positioning frame 132 detects that the workpiece is in place, the cylinder 121 retracts, and the two sliders 125 move towards each other, finally clamping the workpiece with the positioning pin 1211 on the clamping frame 1210. During the entire movement, the guide effect of the slide rail 114 on the sliders 125, the symmetrical arrangement of the clamping frame 1210, and the rigid connection between the positioning pin 1211 and the clamping frame 1210 ensure that the workpiece position does not shift during the clamping process, thus ensuring the machining dimensional accuracy. At the same time, the two sets of sliders 125 are synchronized through the symmetrically arranged drive grooves 124, ensuring that the workpiece is subjected to balanced force and avoiding positioning offset caused by unilateral clamping, further ensuring positioning accuracy.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cylinder linear motion conversion bidirectional lateral motion mechanism, characterized in that, It includes a clamping mechanism (1) and a moving component (2) fixedly connected to the clamping mechanism (1). The clamping mechanism (1) is composed of a mounting base (11), a driving part (12) and a positioning part (13). The mounting base (11) is a base, and the driving part (12) and the positioning part (13) are both disposed on the mounting base (11). The drive unit (12) is provided with two sets of sliding seats (127) that slide on the mounting base (11) and a cylinder (121) that is fixedly installed on the mounting base (11). A slider (125) is fixedly installed on each of the two sets of sliding seats (127). A connector (122) is fixedly connected to the output shaft of the cylinder (121). A drive plate (123) for driving the slider (125) is fixedly connected to the outside of the connector (122). A clamping part for clamping is fixedly connected to the outer end of the slider (125).

2. The cylinder linear motion conversion bidirectional lateral motion mechanism according to claim 1, characterized in that: The two sides of the drive plate (123) are slidably connected to the sliders (125) on both sides respectively, and two sets of drive grooves (124) are symmetrically opened on the sliders (125). Fixing pins (126) are fixedly connected to both sets of sliders (125), and the two sets of fixing pins (126) are slidably arranged in the two sets of drive grooves (124).

3. The cylinder linear motion conversion bidirectional lateral motion mechanism according to claim 2, characterized in that: The clamping part includes a connecting arm (128) that is fixedly connected to the sliders (125) on both sides respectively. A mounting bracket (129) is fixedly connected to each connecting arm (128). A clamping bracket (1210) is fixedly connected to the lower side of each mounting bracket (129). A positioning pin (1211) is fixedly connected to one end of each clamping bracket (1210) facing each other.

4. The cylinder linear motion conversion bidirectional lateral motion mechanism according to claim 1, characterized in that: The mounting base (11) includes a base plate (111), a slide rail (114) is fixedly installed at the upper middle part of the base plate (111), two sets of sliding seats (127) are symmetrically slidably installed on the slide rail (114), and side plates (112) are fixedly installed on the base plate (111) on both sides of the slide rail (114), and a top plate (113) is fixedly connected to the top of each side plate (112). An L-shaped connecting frame (115) is fixedly connected to the left end of the base plate (111). Mounting arms (116) are fixedly connected to both the front and rear sides of the L-shaped connecting frame (115). Both mounting arms (116) are fixedly connected to the positioning part (13).

5. The cylinder linear motion conversion bidirectional lateral motion mechanism according to claim 4, characterized in that: The positioning part (13) includes two sets of mounting brackets (131) that are fixedly connected to two sets of mounting arms (116) respectively. A positioning bracket (132) is fixedly installed at the lower end of the mounting bracket (131), and a sensor (133) is fixedly installed on one of the positioning brackets (132).

6. The cylinder linear motion conversion bidirectional lateral motion mechanism according to claim 1, characterized in that: The moving component (2) includes a fixed frame (201) and a fixed plate (202) fixedly connected to the right end of the cylinder (121). A telescopic rod (207) is fixedly connected between the fixed frame (201) and the fixed plate (202), and a rotating frame (203) is rotatably mounted on the fixed frame (201). A connecting seat (205) is fixedly connected to the fixed plate (202). The connecting seat (205) is slidably connected to the rotating frame (203). A fixed shaft (206) is fixedly connected to the inner side of the connecting seat (205). A sliding groove (204) for sliding with the fixed shaft (206) is provided through the rotating frame (203).

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