A cylinder transmission automatic centering device

Abstract

The present application discloses a cylinder-driven automatic centering device, comprising a frame bottom plate (1), a workbench (2), a measuring table clamping assembly 1 (3), a measuring table clamping assembly 2 (4) and a measuring table rear support (5); the measuring table rear support (5) is arranged on one side of the upper surface of the frame bottom plate (1), the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4) are arranged on the measuring table rear support (5) and slide in a direction parallel to the frame bottom plate (1); the workbench (2) is arranged on the upper surface of the frame bottom plate (1), and the workbench (2) is located between the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4). The technical solution of the present invention can be used for centering and positioning of materials of various sizes, and has high bilateral positioning accuracy, which is convenient for subsequent automatic handling and grasping.

Description

Technical Field

[0001] The invention relates to an automatic centering device for cylinder transmission, belonging to the technical field of intelligent manufacturing. Background Art

[0002] In modern industry, automation in the production process has become a prominent theme. The automation level of all walks of life is getting higher and higher. Modern processing workshops are often equipped with automated handling equipment to improve work efficiency, reduce labor costs, and ensure the stability and continuity of automated handling. Existing automated handling equipment (such as manipulator gripping, crane-type automatic material handling systems, etc.) have high requirements for the position accuracy of the materials to be handled. If there is a large deviation between the material to be handled and the grasping position of the handling equipment, it is necessary to use a centering device to center the material so that it can reach the predetermined grasping position. With the popularization trend of automated handling, automated centering devices are now more and more widely used in fields such as intelligent manufacturing factories. The existing bilateral simultaneous positioning centering device has the defect of low positioning accuracy, and can only perform centering positioning for materials of a single size, which is very inconvenient in use. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a cylinder-driven automatic centering device, which can perform centering and positioning on materials of various sizes, and has high bilateral positioning accuracy, facilitating subsequent automatic handling and grasping.

[0004] The technical solution adopted by the present invention is a cylinder-driven automatic centering device, comprising a frame bottom plate (1), a workbench (2), a measuring table clamping assembly 1 (3), a measuring table clamping assembly 2 (4) and a measuring table rear support (5);

[0005] The measuring table rear support (5) is arranged on one side of the upper surface of the frame bottom plate (1); the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4) are arranged on the measuring table rear support (5) and slide in a direction parallel to the frame bottom plate (1); the working table (2) is arranged on the upper surface of the frame bottom plate (1); the working table (2) is located between the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4);

[0006] An upper rail (51) and a lower rail (52) parallel to each other are arranged on the rear support (5) of the measuring platform; the measuring platform clamping assembly (3) comprises a support arm (32) and a sliding plate (31) fixedly arranged at the end of the support arm (32); the measuring platform clamping assembly (4) comprises a support arm (42) and a sliding plate (41) fixedly arranged at the end of the support arm (42); the sliding plate (31) and the sliding plate (41) slide on the upper rail (51) and the lower rail (52);

[0007] The support arm 1 (32) and the support arm 2 (42) are respectively provided with a centering clamping plate assembly, and the centering clamping plate assemblies on the support arm 1 (32) and the support arm 2 (42) are arranged relative to each other;

[0008] A synchronous driving assembly (6) for synchronously driving two groups of measuring table clamping assemblies (3) is arranged on the measuring table rear support (5), and a sliding plate 1 (31) and a sliding plate 2 (41) are respectively connected to the synchronous driving assembly (6);

[0009] The workbench (2) is slidably connected to the upper surface of the frame bottom plate (1), and a sliding compensation component is provided between the workbench (2) and the frame bottom plate (1).

[0010] Optimized, the above-mentioned cylinder transmission automatic centering device, the centering clamp plate assembly includes a clamp plate (33), a clamp plate support seat (35), and a clamp plate fixing block (34); the clamp plate support seat (35) of the centering clamp plate assembly connected to the support arm one (32) is fixedly connected to the support arm one (32), and the clamp plate support seat (35) of the centering clamp plate assembly connected to the support arm two (42) is fixedly connected to the support arm two (42); two clamp plate fixing blocks (34) are arranged on the clamp plate support seat (35), and each clamp plate fixing block (34) is respectively connected to a clamp plate (33).

[0011] Optimized, in the above-mentioned cylinder transmission automatic centering device, one of the surfaces of the splint fixing block (34) is a clamping surface (341), the clamping surfaces (341) of the two splint fixing blocks (34) on the same splint support seat (35) are relatively inclined, and the splint (33) is arranged on the clamping surface (341); the splint (33) is arranged at an angle to the upper surface of the frame bottom plate (1) and the lower end of the splint (33) is inclined toward the area between the support arm one (32) and the support arm two (42).

[0012] Optimized, in the above-mentioned cylinder transmission automatic centering device, the sliding plate one (31) and the sliding plate two (41) are both U-shaped plates; the upper track (51) is fixedly attached to the surface of the rear support (5) of the measuring platform and the track surface of the upper track (51) is facing away from the bottom plate (1) of the frame, and the lower track (52) is fixedly attached to the surface of the rear support (5) of the measuring platform and the track surfaces of the upper and lower tracks (52) are facing the upper surface of the bottom plate (1) of the frame; the inner surfaces on both sides of the sliding plate one (31) and the inner surfaces on both sides of the sliding plate two (41) are slidably connected to the sliding plate one (31) and the sliding plate two (41) respectively through sliders.

[0013] Optimized, the above-mentioned cylinder transmission automatic centering device, the synchronous drive component (6) includes two racks (61) and a gear (62), the two racks (61) are arranged between the upper track (51) and the lower track (52) and are arranged parallel to the upper track (51) and the lower track (52); the gear (62) is meshed with the two racks (61) and is rotatably connected to the rear support (5) of the measuring platform through a rotating shaft; one of the racks (61) is slidably fitted with the surface of the upper track (51), and the other rack (61) is slidably fitted with the surface of the lower track (52); the two racks (61) are fixedly connected to the sliding plate 1 (31) and the sliding plate 2 (41) respectively; a cylinder is arranged in the rear support (5) of the measuring platform, and the piston rod of the cylinder pushes one of the sliding plate 1 (31) and the sliding plate 2 (41) to slide.

[0014] Optimally, in the above-mentioned cylinder transmission automatic centering device, the upper rail (51) and the lower rail (52) are respectively provided with guide grooves (53), and the two racks (61) are respectively provided with sliding heads (63) that are slidably matched with the guide grooves (53).

[0015] Optimized, the above-mentioned cylinder transmission automatic centering device is provided with a plurality of sets of sliding pairs (21) arranged in parallel with each other in sliding directions between the workbench (2) and the frame bottom plate (1), and the sliding rails and sliding heads of the sliding pairs (21) are respectively fixedly connected to the workbench (2) and the frame bottom plate (1).

[0016] Optimized, the above-mentioned cylinder transmission automatic centering device, the sliding compensation component has two groups of tension spring reset components, and the two groups of tension spring reset components are respectively arranged at the two ends of the sliding direction of the workbench (2); the tension spring reset component includes a tension spring (71), a tension spring positioning column one (72) and a tension spring positioning column two (73), the tension spring positioning column one (72) is fixedly arranged on the frame bottom plate (1), the tension spring positioning column two (73) is fixedly arranged on the workbench (2), and the two ends of the tension spring (71) are respectively fixedly connected to the tension spring positioning column one (72) and the tension spring positioning column two (73); the extension direction of the tension spring (71) is arranged parallel to the sliding direction of the workbench (2).

[0017] Optimized, the above-mentioned cylinder transmission automatic centering device, the splint support seat (35) on the support arm one (32) is fixedly connected to the support arm one (32) by a plurality of cylindrical head hexagon socket bolts; the splint support seat (35) on the support arm two (42) is connected to the support arm two (42) by a plurality of externally threaded equal-height bolts, a compensation gap is provided between the splint support seat (35) on the support arm two (42) and the support arm two (42), and the splint support seat (35) on the support arm two (42) slides relative to the support arm two (42) with the externally threaded equal-height bolts as a sliding axis.

[0018] The advantages of this application are:

[0019] The technical solution of the present application can overcome the problems of asynchronous bilateral positioning and low repeated positioning accuracy, can realize accurate material picking and placing, and has consistency for materials of various specifications. It has a large tolerance for material size and realizes the automation of material picking and placing. After the material is placed in the specified position, the two side clamps of the present invention clamp the material to ensure its positioning accuracy in the horizontal direction, so as to facilitate the accurate picking and placing of materials by the automated equipment in the subsequent process. It can also realize rapid transportation in a small space, adapt to the transportation space to the greatest extent, ensure the accuracy of transportation, and completely replace manual transportation; improve the degree of automation in the intelligent manufacturing process, improve working conditions, avoid personal accidents, improve production efficiency, and reduce the cost of intelligent manufacturing; the whole process is safe, reliable, fast and efficient, and can be widely promoted and used in the intelligent manufacturing industry with small transportation space, the need to ensure the accuracy of material picking and placing, and heavy workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the cylinder transmission automatic centering device of the present application;

[0021] Figure 2 A top view of the cylinder transmission automatic centering device of the present application;

[0022] Figure 3 This is a front view of the cylinder transmission automatic centering device of the present application;

[0023] Figure 4 A side view of the cylinder transmission automatic centering device of the present application;

[0024] Figure 5 for Figure 4 A magnified image of point A;

[0025] Figure 6 for Figure 4 The enlarged view of point B;

[0026] Figure 7 for Figure 1 Enlarged view of point C;

[0027] Figure 8 It is a structural schematic diagram of the connection between the second support arm and the clamping plate support seat through external thread equal height bolts. DETAILED DESCRIPTION

[0028] The technical features of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] The present invention is an automatic centering device driven by a cylinder, comprising a frame bottom plate (1), a workbench (2), a first measuring table clamping assembly (3), a second measuring table clamping assembly (4) and a rear support (5) of the measuring table;

[0030] The measuring table rear support (5) is arranged on one side of the upper surface of the frame bottom plate (1); the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4) are arranged on the measuring table rear support (5) and slide in a direction parallel to the frame bottom plate (1); the working table (2) is arranged on the upper surface of the frame bottom plate (1); the working table (2) is located between the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4);

[0031] An upper rail (51) and a lower rail (52) parallel to each other are arranged on the rear support (5) of the measuring platform; the measuring platform clamping assembly (3) comprises a support arm (32) and a sliding plate (31) fixedly arranged at the end of the support arm (32); the measuring platform clamping assembly (4) comprises a support arm (42) and a sliding plate (41) fixedly arranged at the end of the support arm (42); the sliding plate (31) and the sliding plate (41) slide on the upper rail (51) and the lower rail (52);

[0032] The support arm 1 (32) and the support arm 2 (42) are respectively provided with a centering clamping plate assembly, and the centering clamping plate assemblies on the support arm 1 (32) and the support arm 2 (42) are arranged relative to each other;

[0033] The technical solution of the present application is suitable for performing centering and clamping operations on cylindrical rod-shaped materials. Before the centering operation begins, the rod-shaped material is placed on a workbench (2) and its cylindrical axis is arranged perpendicular to the workbench (2).

[0034] After the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4) move along the upper track (51) and the lower track (52) and reach the predetermined position, the area between the centering clamping plate assemblies of the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4) should be the clamping position of the automatic material handling device.

[0035] After the material is placed on the workbench (2), the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4) move relative to each other along a predetermined track. During the relative movement of the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4), the centering clamping plate assembly on the support arm 1 (32) and the support arm 2 (42) pushes the material on the workbench (2) and synchronously clamps the material after the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4) move to a predetermined position, thereby ensuring that the material is centered at the clamping position of the automatic material handling device.

[0036] A synchronous driving assembly (6) for synchronously driving two groups of measuring table clamping assemblies (3) is arranged on the measuring table rear support (5), and a sliding plate 1 (31) and a sliding plate 2 (41) are respectively connected to the synchronous driving assembly (6);

[0037] The workbench (2) is slidably connected to the upper surface of the frame bottom plate (1), and a sliding compensation component is provided between the workbench (2) and the frame bottom plate (1).

[0038] In the technical solution of the present application, during the movement of the measuring table clamp assembly 1 (3) and the measuring table clamp assembly 2 (4), the synchronous drive assembly (6) can ensure that the movement speed and movement distance of the measuring table clamp assembly 1 (3) and the measuring table clamp assembly 2 (4) remain highly consistent, thereby preventing the material from being biased and clamped during the centering process due to the inconsistent movement of the measuring table clamp assembly 1 (3) and the measuring table clamp assembly 2 (4), thereby ensuring that the material can achieve better position accuracy after the centering operation.

[0039] The material will be displaced during the process of being pushed. At this time, the sliding friction resistance between the material and the workbench (2) will hinder the movement of the material. When the material moves a large distance on the workbench (2), the material may tilt or even overturn in the direction of the measuring table rear support (5) or away from the measuring table rear support (5) under the influence of the friction resistance. In this way, the material may escape from the clamping area between the measuring table jaw assembly 1 (3) and the measuring table jaw assembly 2 (4), thereby causing certain difficulties in the clamping alignment of the measuring table jaw assembly 1 (3) and the measuring table jaw assembly 2 (4), and may affect the position accuracy of the alignment.

[0040] In order to avoid the above situation, the workbench (2) is slidably arranged on the bottom plate (1) of the frame and a sliding compensation component is provided. When the material is pushed and moved by the measuring table clamping jaw component 1 (3) and the measuring table clamping jaw component 2 (4), the material drives the workbench (2) to move through the friction between the material and the workbench (2), but the material and the workbench (2) will not move relative to each other in the direction toward the measuring table rear support (5) or away from the measuring table rear support (5), thereby preventing the material from tilting in the direction toward the measuring table rear support (5) or away from the measuring table rear support (5), ensuring that the measuring table clamping jaw component 1 (3) and the measuring table clamping jaw component 2 (4) can clamp and center the material, and ensuring that the clamping and centering process is effectively carried out.

[0041] The centering clamp assembly comprises a clamp (33), a clamp support seat (35), and a clamp fixing block (34); the clamp support seat (35) of the centering clamp assembly connected to the first support arm (32) is fixedly connected to the first support arm (32), and the clamp support seat (35) of the centering clamp assembly connected to the second support arm (42) is fixedly connected to the second support arm (42); two clamp fixing blocks (34) are arranged on the clamp support seat (35), and each clamp fixing block (34) is respectively connected to a clamp (33).

[0042] The material is clamped from multiple directions by the multiple clamping plates (33) on the clamping plate support seat (35), and the material can be well clamped and supported during the clamping process, which can ensure that the material has good position accuracy after centering, facilitating subsequent material grabbing operations.

[0043] One of the surfaces of the splint fixing block (34) is a clamping surface (341), and the clamping surfaces (341) of the two splint fixing blocks (34) on the same splint support seat (35) are arranged to be inclined relative to each other, and the splint (33) is arranged on the clamping surface (341); the splint (33) is arranged at an angle to the upper surface of the frame bottom plate (1), and the lower end of the splint (33) is inclined toward the area between the first support arm (32) and the second support arm (42).

[0044] In the present application, the four clamping plates (33) on the support arm 1 (32) and the support arm 2 (42) can enclose a diamond-shaped area during the clamping and centering process, which is convenient for centering and clamping cylindrical rod-shaped materials, and can clamp and position the materials from four directions to ensure good positioning accuracy.

[0045] The sliding plate 1 (31) and the sliding plate 2 (41) are both U-shaped plates; the upper track (51) is fixedly attached to the surface of the rear support (5) of the measuring platform and the track surface of the upper track (51) faces away from the bottom plate (1) of the frame; the lower track (52) is fixedly attached to the surface of the rear support (5) of the measuring platform and the track surfaces of the upper and lower tracks (52) face the upper surface of the bottom plate (1) of the frame; the inner surfaces on both sides of the sliding plate 1 (31) and the inner surfaces on both sides of the sliding plate 2 (41) are slidably connected to the sliding plate 1 (31) and the sliding plate 2 (41) respectively through sliders.

[0046] In the present application, sliding plate 1 (31) and sliding plate 2 (41) are both configured to be U-shaped, so that the upper rail (51) and the lower rail (52) can respectively slide and limit the two side surfaces of the U-shape, thereby ensuring that support arm 1 (32), support arm 2 (42) and the four clamping plates (33) thereon can maintain good movement accuracy, thereby ensuring that the material has good position accuracy after clamping and centering.

[0047] The synchronous drive assembly (6) comprises two racks (61) and a gear (62), wherein the two racks (61) are arranged between the upper rail (51) and the lower rail (52) and are arranged parallel to the upper rail (51) and the lower rail (52); the gear (62) is meshed with the two racks (61) and is rotatably connected to the rear support (5) of the measuring platform via a rotating shaft; one of the racks (61) is slidably fitted with the surface of the upper rail (51), and the other rack (61) is slidably fitted with the surface of the lower rail (52); the two racks (61) are fixedly connected to the sliding plate 1 (31) and the sliding plate 2 (41) respectively; a cylinder is arranged in the rear support (5) of the measuring platform, and the piston rod of the cylinder pushes one of the sliding plate 1 (31) and the sliding plate 2 (41) to slide.

[0048] In the present application, two racks (61) are meshed with the same gear (62) to ensure that the two racks (61) maintain a synchronized moving speed and moving distance during the movement process, thereby ensuring that the measuring table clamp assembly 1 (3) and the measuring table clamp assembly 2 (4) maintain synchronization during the movement process. In order to reduce the influence of dual power on the movement of the measuring table clamp assembly 1 (3) and the measuring table clamp assembly 2 (4), the present application adopts a method of driving one of the clamp assemblies with a single cylinder, and drives the movement of the other clamp assembly through the meshing of the gear (62) and the rack (61), thereby maintaining the movement synchronization of the two clamp assemblies.

[0049] The upper rail (51) and the lower rail (52) are respectively provided with guide slots (53), and the two racks (61) are respectively provided with sliding heads (63) which are slidably matched with the guide slots (53).

[0050] The two racks (61) are respectively fitted and slid with the upper rail (51) and the lower rail (52) to support the two racks (61) in a sliding manner. In order to ensure the position accuracy of the two racks (61) during the movement, the movement of the racks (61) is guided by the cooperation of the guide slots (53) and the sliding heads (63), so as to ensure the position and direction of the two racks (61) during the movement, thereby ensuring the stability of the centering effect.

[0051] A plurality of sets of sliding pairs (21) arranged in parallel sliding directions are arranged between the workbench (2) and the frame bottom plate (1); the sliding rails and sliders of the sliding pairs (21) are respectively fixedly connected to the workbench (2) and the frame bottom plate (1).

[0052] The sliding compensation assembly comprises two groups of tension spring reset assemblies, and the two groups of tension spring reset assemblies are respectively arranged at the two ends of the sliding direction of the workbench (2); the tension spring reset assembly comprises a tension spring (71), a tension spring positioning column one (72) and a tension spring positioning column two (73); the tension spring positioning column one (72) is fixedly arranged on the frame bottom plate (1), and the tension spring positioning column two (73) is fixedly arranged on the workbench (2); the two ends of the tension spring (71) are respectively fixedly connected to the tension spring positioning column one (72) and the tension spring positioning column two (73); the extension direction of the tension spring (71) is arranged parallel to the sliding direction of the workbench (2).

[0053] In the present application, the sliding pair (21) is provided to enable the workbench (2) and the frame bottom plate (1) to slide relative to each other and ensure the directionality of the relative sliding. After the workbench (2) and the frame bottom plate (1) move relative to each other, the workbench is reset by two sets of tension spring reset assemblies, and the tension spring (71) of the tension spring reset assembly can provide damping when the workbench (2) moves, preventing the workbench (2) from moving suddenly and causing the material on the workbench (2) to shake and overturn.

[0054] The splint support seat (35) on the first arm (32) is fixedly connected to the first arm (32) by a plurality of cylindrical head hexagon socket bolts; the splint support seat (35) on the second arm (42) is connected to the second arm (42) by a plurality of externally threaded equal-height bolts, a compensation gap is provided between the splint support seat (35) on the second arm (42) and the second arm (42), and the splint support seat (35) on the second arm (42) slides relative to the second arm (42) using the externally threaded equal-height bolts as a sliding axis.

[0055] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A cylinder transmission automatic centering device, characterized in that: It comprises a frame bottom plate (1), a workbench (2), a measuring table clamping jaw assembly 1 (3), a measuring table clamping jaw assembly 2 (4) and a measuring table rear support (5); The measuring table rear support (5) is arranged on one side of the upper surface of the frame bottom plate (1); the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4) are arranged on the measuring table rear support (5) and slide in a direction parallel to the frame bottom plate (1); the working table (2) is arranged on the upper surface of the frame bottom plate (1); the working table (2) is located between the measuring table clamping assembly 1 (3) and the measuring table clamping assembly 2 (4); An upper rail (51) and a lower rail (52) parallel to each other are arranged on the rear support (5) of the measuring platform; the measuring platform clamping assembly (3) comprises a support arm (32) and a sliding plate (31) fixedly arranged at the end of the support arm (32); the measuring platform clamping assembly (4) comprises a support arm (42) and a sliding plate (41) fixedly arranged at the end of the support arm (42); the sliding plate (31) and the sliding plate (41) slide on the upper rail (51) and the lower rail (52); The support arm 1 (32) and the support arm 2 (42) are respectively provided with a centering clamping plate assembly, and the centering clamping plate assemblies on the support arm 1 (32) and the support arm 2 (42) are arranged opposite to each other; the measuring table rear support (5) is provided with a synchronous driving assembly (6) for synchronously driving the measuring table clamping jaw assembly 1 (3) and the measuring table clamping jaw assembly 2 (4), and the sliding plate 1 (31) and the sliding plate 2 (41) are respectively connected to the synchronous driving assembly (6); The workbench (2) is slidably connected to the upper surface of the frame bottom plate (1), and a sliding compensation component is provided between the workbench (2) and the frame bottom plate (1); The synchronous drive assembly (6) comprises two racks (61) and a gear (62), wherein the two racks (61) are arranged between the upper rail (51) and the lower rail (52) and are arranged parallel to the upper rail (51) and the lower rail (52); the gear (62) is meshed with the two racks (61) and is rotatably connected to the rear support (5) of the measuring platform via a rotating shaft; one of the racks (61) is slidably fitted with the surface of the upper rail (51), and the other rack (61) is slidably fitted with the surface of the lower rail (52); the two racks (61) are fixedly connected to the sliding plate 1 (31) and the sliding plate 2 (41) respectively; a cylinder is arranged in the rear support (5) of the measuring platform, and the piston rod of the cylinder pushes one of the sliding plate 1 (31) and the sliding plate 2 (41) to slide; A plurality of sets of sliding pairs (21) are arranged with sliding directions parallel to each other between the workbench (2) and the frame bottom plate (1); the sliding rails and sliding heads of the sliding pairs (21) are respectively fixedly connected to the workbench (2) and the frame bottom plate (1); The sliding compensation assembly comprises two groups of tension spring reset assemblies, and the two groups of tension spring reset assemblies are respectively arranged at the two ends of the sliding direction of the workbench (2); the tension spring reset assembly comprises a tension spring (71), a tension spring positioning column 1 (72) and a tension spring positioning column 2 (73); the tension spring positioning column 1 (72) is fixedly arranged on the bottom plate of the frame (1), and the tension spring positioning column 2 (73) is fixedly arranged on the workbench (2); the two ends of the tension spring (71) are respectively fixedly connected to the tension spring positioning column 1 (72) and the tension spring positioning column 2 (73); the extension direction of the tension spring (71) is arranged parallel to the sliding direction of the workbench (2); The centering clamping plate assembly comprises a clamping plate (33), a clamping plate support seat (35), and a clamping plate fixing block (34); the clamping plate support seat (35) of the centering clamping plate assembly connected to the first support arm (32) is fixedly connected to the first support arm (32), and the clamping plate support seat (35) of the centering clamping plate assembly connected to the second support arm (42) is fixedly connected to the second support arm (42); two clamping plate fixing blocks (34) are arranged on the clamping plate support seat (35), and each clamping plate fixing block (34) is respectively connected to a clamping plate (33); One of the surfaces of the splint fixing block (34) is a clamping surface (341), and the clamping surfaces (341) of the two splint fixing blocks (34) on the same splint support seat (35) are arranged to be inclined relative to each other, and the splint (33) is arranged on the clamping surface (341); the splint (33) is arranged at an angle to the upper surface of the frame bottom plate (1), and the lower end of the splint (33) is inclined toward the area between the first support arm (32) and the second support arm (42).

2. The cylinder transmission automatic centering device according to claim 1, characterized in that: The sliding plate 1 (31) and the sliding plate 2 (41) are both U-shaped plates; the upper track (51) is fixedly attached to the surface of the rear support (5) of the measuring platform and the track surface of the upper track (51) faces away from the bottom plate (1) of the frame; the lower track (52) is fixedly attached to the surface of the rear support (5) of the measuring platform and the track surfaces of the upper and lower tracks (52) face the upper surface of the bottom plate (1) of the frame; the inner surfaces on both sides of the sliding plate 1 (31) and the inner surfaces on both sides of the sliding plate 2 (41) are slidably connected to the sliding plate 1 (31) and the sliding plate 2 (41) respectively through sliders.

3. The cylinder transmission automatic centering device according to claim 1, characterized in that: The upper rail (51) and the lower rail (52) are respectively provided with guide slide grooves (53), and the two racks (61) are respectively provided with sliding heads (63) which are slidably matched with the guide slide grooves (53).

4. The cylinder transmission automatic centering device according to claim 1, characterized in that: The splint support seat (35) on the first arm (32) is fixedly connected to the first arm (32) by a plurality of cylindrical head hexagon socket bolts; the splint support seat (35) on the second arm (42) is connected to the second arm (42) by a plurality of externally threaded equal-height bolts, a compensation gap is provided between the splint support seat (35) on the second arm (42) and the second arm (42), and the splint support seat (35) on the second arm (42) slides relative to the second arm (42) using the externally threaded equal-height bolts as a sliding axis.

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