Tool clamp

Abstract

The utility model discloses a tool clamp which comprises a tool body. The pneumatic pressing mechanism is mounted on the tool main body and is used for pressing a workpiece; the two servo model changing mechanisms are both mounted on the tool main body and are used for adjusting and being compatible with workpieces with different lengths; and the end part jacking mechanism is mounted on the tool main body and is used for jacking the end part of the workpiece. According to the tool clamp, on the basis of servo control, automatic remodeling of a workpiece can be rapidly and accurately achieved, the problems of human errors and adjustment are solved, and it is guaranteed that remodeling is correct every time. Compared with the conventional manual pressing device, the pneumatic pressing mechanism is introduced, so that the workpiece can be conveniently and quickly pressed, the stability and the positioning accuracy of the workpiece are improved, the application range is wide, and workpieces of different models and the production requirements can be met.

Description

Technical Field

[0001] The utility model relates to a tool fixture and belongs to the technical field of automated manufacturing. Background Art

[0002] In the field of automated manufacturing, especially in the automated welding, handling and positioning of loading and unloading parts, the transmission, positioning and clamping of workpieces are crucial links. Traditional fixtures usually have the following problems and limitations: Workpiece changeover and clamping usually require manual intervention, which may lead to operational errors, inadequate adjustments or forgotten adjustments. These problems may cause the installation position of the workpiece to be incorrect, which in turn makes it impossible for the welding, assembly and other work of the next process to proceed smoothly, and may even cause quality problems or accidents. Summary of the invention

[0003] In view of the problems existing in the prior art, the utility model provides a tooling fixture.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts a fixture, comprising:

[0005] Tool body;

[0006] A pneumatic clamping mechanism, which is installed on the tooling body and is used to clamp the workpiece;

[0007] Servo mold changing mechanisms, two of which are installed on the tooling body and are used to adjust and accommodate workpieces of different lengths;

[0008] The end tightening mechanism is installed on the tooling body to realize the end tightening of the workpiece.

[0009] In some embodiments, the pneumatic clamping mechanism comprises:

[0010] A side drive assembly, comprising a side push cylinder and a cylinder connection mounting seat for connecting the side push cylinder, wherein the side push cylinder drives the cylinder connection mounting seat to move along the Y-axis direction;

[0011] An upper clamping assembly, comprising an upper clamping cylinder and an upper rotating clamping block mounted on the upper clamping cylinder, wherein the upper clamping cylinder is used to drive the upper rotating clamping block to move along the Z-axis direction to clamp the workpiece, and the upper clamping cylinder is mounted on the cylinder connection mounting seat and can move synchronously along the Y-axis direction with the cylinder connection mounting seat;

[0012] The proximity switch detection device comprises a side proximity switch detection device and an upper proximity switch detection device, wherein the side proximity switch detection device is used to detect the position of the workpiece from the side, and the upper proximity switch detection device is used to detect the position of the workpiece from the top.

[0013] In some embodiments, a cylinder limiting sleeve is installed on the upper pressing cylinder.

[0014] In some embodiments, the number of the upper pressing cylinder, the upper rotating pressing block and the cylinder limiting sleeve is no less than two.

[0015] In some embodiments, the servo mold changing mechanism includes a mold changing mechanism body, a plurality of the mold changing mechanism bodies are installed with pneumatic clamping components, the mold changing mechanism body is connected to a servo drive mechanism, and the servo drive mechanism drives the mold changing mechanism body to move on the X-axis, driving the pneumatic clamping components to move synchronously;

[0016] The main bodies of the shape-changing mechanisms are connected via shape-changing mechanism drag chains.

[0017] In some embodiments, a mold changing mechanism limiting plate is installed on the mold changing mechanism body.

[0018] In some embodiments, the structure of the pneumatic clamping assembly is the same as the structure of the pneumatic clamping mechanism.

[0019] In some embodiments, the end clamping mechanism includes an end clamping mechanism body, one end of which is equipped with an end clamping cylinder, and the other end is equipped with an end limit block, and the end of the end clamping cylinder is equipped with a cylinder clamping block that cooperates with the end limit block to clamp the workpiece.

[0020] In some embodiments, an end anti-collision block is installed above the end limit block.

[0021] Compared with the prior art, the fixture of the utility model, based on servo control, can quickly and accurately realize the automatic change of workpieces, eliminating human errors and adjustment problems, and ensuring that each change is correct. Compared with the previous manual clamping device, the utility model introduces a pneumatic clamping mechanism, which can clamp the workpiece conveniently and quickly, improve the stability and positioning accuracy of the workpiece, and has a wide range of applications, which can meet different types of workpieces and production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2It is a structural schematic diagram of the utility model for assembling workpieces;

[0025] Figure 3 It is a structural schematic diagram of the pneumatic pressing mechanism of the utility model;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the pneumatic pressing mechanism of the utility model;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the servo type changing mechanism of the utility model;

[0028] Figure 6 It is a front view of the servo type changing mechanism of the utility model;

[0029] Figure 7 It is a right side view of the servo type changing mechanism of the utility model;

[0030] Figure 8 It is a right side view of the end tightening mechanism of the utility model;

[0031] Fig. 9 It is a three-dimensional structural schematic diagram of the end tightening mechanism of the utility model;

[0032] In the figure: 1. Tool body;

[0033] 2. Pneumatic clamping mechanism; 2.1. Side push cylinder; 2.2. Cylinder connection mounting seat; 2.3. Upper clamping cylinder A; 2.4. Upper rotating clamping block A; 2.5. Cylinder limit sleeve A; 2.6. Side proximity switch detection device; 2.7. Upper clamping cylinder B; 2.8. Cylinder limit sleeve B; 2.9. Upper rotating clamping block B; 2.10. Upper proximity switch detection device;

[0034] 3. Servo type-changing mechanism; 3.1. Servo drive mechanism A; 3.2. Pneumatic clamping assembly A; 3.3. Type-changing mechanism body A; 3.4. Servo drive mechanism B; 3.5. Pneumatic clamping assembly B; 3.6. Type-changing mechanism body B; 3.7. Type-changing mechanism drag chain; 3.8. Type-changing mechanism limit plate;

[0035] 4. End tightening mechanism; 4.1. End tightening mechanism body; 4.2. End tightening cylinder; 4.3. End anti-collision block; 4.4. End limit block; 4.5. Cylinder tightening block;

[0036] 5. Workpiece. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions of the present application are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0038] like Figures 1 to 9 As shown, a tool fixture comprises a tool body 1, on which a pneumatic clamping mechanism 2, a servo mold changing mechanism 3 and an end clamping mechanism 4 are installed;

[0039] The pneumatic clamping mechanism 2 is installed on the tooling body 1 to achieve the clamping of the workpiece 5; the servo mold changing mechanism 3 is provided with two and both are installed on the tooling body 1, for adjusting and being compatible with workpieces 5 of different lengths; the end clamping mechanism 4 is installed on the tooling body 1 to achieve the end clamping of the workpiece 5.

[0040] In some embodiments, Figure 3 , Figure 4 As shown, the pneumatic clamping mechanism 2 includes a side drive assembly, an upper clamping assembly and a proximity switch detection device;

[0041] The side drive assembly includes a side push cylinder 2.1 and a cylinder connection mounting seat 2.2 for connecting the side push cylinder 2.1. The side push cylinder 2.1 drives the cylinder connection mounting seat 2.2 to move along the Y-axis direction.

[0042] The upper clamping assembly includes an upper clamping cylinder and an upper rotating clamping block mounted on the upper clamping cylinder. The upper clamping cylinder is used to drive the upper rotating clamping block to move along the Z-axis direction to clamp the workpiece. The upper clamping cylinder is mounted on the cylinder connecting mounting seat 2.2 and can move synchronously with the cylinder connecting mounting seat 2.2 along the Y-axis direction.

[0043] The proximity switch detection device comprises a side proximity switch detection device 2.6 and an upper proximity switch detection device 2.10. The side proximity switch detection device 2.6 is used to detect the position of the workpiece from the side, and the upper proximity switch detection device 2.10 is used to detect the position of the workpiece from the top.

[0044] In some embodiments, Figure 3 , Figure 4As shown, the pneumatic clamping mechanism 2 is located on the tooling body 1, and includes a side clamping cylinder 2.1, a cylinder connection mounting seat 2.2, an upper clamping cylinder A 2.3, an upper rotary clamping block A 2.4, a cylinder limit sleeve A 2.5, a side proximity switch detection device 2.6, an upper clamping cylinder B 2.7, a cylinder limit sleeve B 2.8, an upper rotary clamping block B 2.9 and an upper proximity switch detection device 2.10;

[0045] The side pushing cylinder 2.1 is connected to the cylinder connection mounting seat 2.2, the cylinder connection mounting seat 2.2 is connected to the upper pressing cylinder A2.3, the side pushing cylinder 2.1 pushes the upper pressing cylinder A2.3 to move in the Y-axis direction; the side proximity switch detection device 2.6 detects the workpiece 5, the side pushing cylinder 2.1 stops pushing, and the upper pressing cylinder A2.3 drives the upper rotating pressing block A2.4 to move in the Z-axis direction to press the workpiece 5 downward;

[0046] The upper clamping cylinder B 2.7 drives the upper rotating clamping block B 2.9 to move in the Z-axis direction to press the workpiece 5 downward; the upper proximity switch detection device 2.10 detects the workpiece 5, and the upper clamping cylinder A 2.3 and the upper clamping cylinder B 2.7 stop moving; the cylinder limit sleeve A 2.5 is connected to the main body of the upper clamping cylinder A 2.3, and the cylinder limit sleeve A 2.8 is connected to the main body of the upper clamping cylinder A2.7 to limit the cylinder stroke and protect the cylinder.

[0047] In some embodiments, Figure 5 , Figure 6 and Figure 7 As shown, the servo mold changing mechanism 3 includes a mold changing mechanism body, and a plurality of the mold changing mechanism bodies are installed with pneumatic clamping components. The mold changing mechanism body is connected to a servo drive mechanism, and the servo drive mechanism drives the mold changing mechanism body to move on the X-axis, driving the pneumatic clamping components to move synchronously;

[0048] The main bodies of the shape-changing mechanisms are connected via a shape-changing mechanism drag chain 3.7.

[0049] In some embodiments, Figure 5 , Figure 6 and Figure 7 As shown, the servo mold changing mechanism 3 is located on the tooling body 1, and includes a servo drive mechanism A 3.1, a pneumatic clamping assembly A 3.2, a mold changing mechanism body A 3.3, a servo drive mechanism B 3.4, a pneumatic clamping assembly B 3.5, a mold changing mechanism body B 3.6, a mold changing mechanism drag chain 3.7, and a mold changing mechanism limit plate 3.8;

[0050] The servo drive mechanism A 3.1 is connected to the mold changing mechanism body A 3.3, pushes the mold changing mechanism body A 3.3 to move on the X-axis, and drives the pneumatic clamping assembly A 3.2 to move synchronously; the servo drive mechanism B 3.4 is connected to the mold changing mechanism body B 3.6, pushes the mold changing mechanism body B 3.6 to move on the X-axis, and drives the pneumatic clamping assembly B 3.5 to move synchronously; the pneumatic clamping assembly A 3.2 and the pneumatic clamping assembly B 3.5 have the same structure and the same movement mode as the pneumatic clamping mechanism 2; the mold changing mechanism drag chain 3.7 is located on the tooling body 1, and is connected to the mold changing mechanism body A 3.3 and the mold changing mechanism body B 3.6; the mold changing mechanism limit plate 3.8 is symmetrically installed on the mold changing mechanism body A 3.3 and the mold changing mechanism body B 3.6, and limits the relative distance between the servo drive mechanism A 3.1 and the servo drive mechanism B 3.4 when they move to prevent collision.

[0051] In some embodiments, Figure 8 , Fig. 9 As shown, the end tightening mechanism 4 is located on the tooling body 1, and includes an end tightening mechanism body 4.1, an end tightening cylinder 4.2, an end anti-collision block 4.3, an end limit block 4.4, and a cylinder tightening block 4.5; the end tightening cylinder 4.2, the end anti-collision block 4.3 and the end limit block 4.4 are located on the end tightening mechanism body 4.1; the inclined surface of the end anti-collision block 4.3 can optimize the operational errors when the workpiece is placed; the cylinder tightening block 4.5 is connected to the end tightening cylinder 4.2, and the end tightening cylinder 4.2 pushes the cylinder tightening block 4.5 to tighten the workpiece 5 to the end limit block 4.4, so as to achieve the effect of end limit clamping the workpiece 5.

[0052] The utility model realizes automatic type changing and automatic pressing of workpieces by introducing servo control and pneumatic pressing mechanisms.

[0053] In addition, the fixture of the utility model is also equipped with an electric control device and a touch screen. The electric control device is used to control the servo mold changing mechanism and the pneumatic clamping mechanism; the touch screen or other control methods are used to change the program and control the operation of the servo mechanism.

[0054] Among them, the electric control device is used to connect the servo mold changing mechanism and the pneumatic clamping mechanism. It can be a dedicated controller or integrated in the central control unit of the system. By setting control parameters, it can ensure that the servo mold changing mechanism and the pneumatic clamping mechanism can work in a correct and coordinated manner.

[0055] A touch screen or other control configuration is used so that the operator can easily change programs, enter part numbers, and start changeovers. These controls are connected to the electronic controls.

[0056] Workpiece positioning and changeover: When a workpiece model needs to be changed, the operator can select a new program using the touch screen or other control methods. The worktable is moved to the correct position to accommodate the new model of workpiece. The workpiece can be placed on the worktable and positioned to the desired position by the servo changeover mechanism.

[0057] Workpiece clamping: Once the workpiece is positioned, the operator can use a button or other operating methods to control the pneumatic clamping mechanism to clamp the workpiece. This ensures the stability and safety of the workpiece.

[0058] Work in progress: Once the workpiece is positioned and clamped, the fixture can start automated welding, handling, loading and unloading or other production processes. The work process will be supervised by the control system to ensure that the workpiece is handled correctly.

[0059] The fixture of the utility model, based on servo control, can realize the automatic change of workpiece quickly and accurately, eliminate human errors and adjustment problems, and ensure that each change is correct. Compared with the previous manual clamping device, the utility model introduces a pneumatic clamping mechanism, which can clamp the workpiece conveniently and quickly, improve the stability and positioning accuracy of the workpiece, and has a wide range of applications, which can meet different types of workpieces and production needs.

[0060] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

Claims

1. A fixture, characterized in that: include: Tool body (1); A pneumatic clamping mechanism (2) mounted on the tooling body (1) for clamping the workpiece (5); A servo mold changing mechanism (3), two of which are installed on the tooling body (1) and are used to adjust and accommodate workpieces (5) of different lengths; An end tightening mechanism (4) mounted on the tooling body (1) and used to tighten the end of a workpiece (5); The pneumatic clamping mechanism (2) comprises: a side drive assembly, comprising a side pushing cylinder (2.1) and a cylinder connecting mounting seat (2.2) for connecting the side pushing cylinder (2.1), wherein the side pushing cylinder (2.1) drives the cylinder connecting mounting seat (2.2) to move along the Y-axis direction; an upper clamping assembly, comprising an upper clamping cylinder and an upper rotating clamping block mounted on the upper clamping cylinder, wherein the upper clamping cylinder is used to drive the upper rotating clamping block to move along the Z-axis direction to clamp the workpiece, wherein the upper clamping cylinder is mounted on the cylinder connecting mounting seat (2.2) and can move synchronously with the cylinder connecting mounting seat (2.2) along the Y-axis direction; a proximity switch detection device, comprising a side proximity switch detection device (2.6) and an upper proximity switch detection device (2.10), wherein the side proximity switch detection device (2.6) is used to detect the position of the workpiece from the side, and the upper proximity switch detection device (2.10) is used to detect the position of the workpiece from the top; The servo mold changing mechanism (3) comprises a mold changing mechanism main body, a plurality of the mold changing mechanism main bodies are mounted with pneumatic clamping assemblies, the mold changing mechanism main body is connected to a servo drive mechanism, the servo drive mechanism drives the mold changing mechanism main body to move on the X-axis, driving the pneumatic clamping assembly to move synchronously; the mold changing mechanism main bodies are connected via a mold changing mechanism drag chain (3.7); The end clamping mechanism (4) comprises an end clamping mechanism body (4.1), one end of the end clamping mechanism body (4.1) being mounted with an end clamping cylinder (4.2), and the other end being mounted with an end limit block (4.4), and the end of the end clamping cylinder (4.2) being mounted with a cylinder clamping block (4.5) that cooperates with the end limit block (4.4) to clamp a workpiece (5).

2. A fixture according to claim 1, characterized in that: A cylinder limiting sleeve is installed on the upper pressing cylinder.

3. A fixture according to claim 2, characterized in that: The number of the upper pressing cylinder, the upper rotating pressing block and the cylinder limiting sleeve is no less than two.

4. A fixture according to claim 1, characterized in that: A mold changing mechanism limiting plate (3.8) is installed on the mold changing mechanism main body.

5. A fixture according to claim 1 or 4, characterized in that: The structure of the pneumatic pressing assembly is the same as that of the pneumatic pressing mechanism (2).

6. A fixture according to claim 1, characterized in that: An end anti-collision block (4.3) is installed above the end limit block (4.4).

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