Cylinder clamp

Abstract

The utility model discloses a cylinder clamping fixture, which belongs to the technical field of fixtures, and includes a frame; the frame is connected with a plurality of groups of front-to-back symmetrical double-station clamping assemblies from left to right; the double-station clamping assemblies are respectively connected with a round tube and a mounting ring, and the mounting ring is sleeved on the outer side of the round tube and slidably connected with the round tube; the double-station clamping assembly includes a top clamping assembly and front-to-back clamping assemblies. The round tube is placed on the top clamping assembly, the top clamping assembly clamps and fixes the round tube from a vertical direction, the mounting ring is sleeved on the outer side of the round tube, and the front-to-back clamping assemblies clamp and fix the mounting ring, thereby improving the stability of clamping the round tube and the mounting ring, so as to cooperate with the machine tool to process the corresponding position of the workpiece, and improve the processing accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a cylinder tightening clamp. Background Art

[0002] In the process of mechanical processing, it is usually necessary to use a fixture to fix the workpiece on the machine tool so as to position the workpiece and ensure the stability of the workpiece processing. The fixture currently used in the machining process has only one or two fixed points.

[0003] For example, Chinese patent CN219403288U proposes a double-cylinder positioning fixture, including a base, on which a transverse moving seat and a transverse moving assembly connected to the transverse moving seat are provided; on the transverse moving assembly, a longitudinal moving seat and a longitudinal moving assembly connected to the longitudinal moving seat are provided; on the longitudinal moving seat, two groups of fixtures and a double-cylinder driving mechanism connected to the two groups of fixtures are provided, and the double-cylinder driving mechanism is used to drive the two groups of fixtures to move synchronously. The double-clamp cylinder is used to push the two groups of fixtures to move separately, which can drive the two groups of fixtures to provide two fixed points for the workpieces to be clamped.

[0004] However, the above patent only provides two fixed points for the workpiece to be clamped, and the workpiece may still be offset in other directions, and the clamping accuracy needs to be improved.

[0005] Based on this, the utility model designs a cylinder tightening clamp to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a cylinder clamping fixture.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] Cylinder clamping fixture, including frame;

[0009] The frame is connected to a plurality of groups of front-to-back symmetrical double-station clamping assemblies from left to right for clamping the round tube and the mounting ring at multiple angles;

[0010] The double-station pressing assembly is connected to the round tube and the mounting ring respectively, and the mounting ring is sleeved on the outside of the round tube and is slidably connected to the round tube;

[0011] The double-station clamping assembly includes a top clamping assembly and front and rear clamping assemblies, which are connected to the frame, the top clamping assembly is connected to the front and rear clamping assemblies, the top clamping assembly is connected to the round pipe, and the front and rear clamping assemblies are connected to the mounting ring.

[0012] Furthermore, the top clamping assembly includes a rotary clamping cylinder, a connecting block, a limiting rod, an arc-shaped clamping block, a mounting seat and an arc-shaped groove. The top of the frame is fixedly connected with a left-right symmetrical mounting seat, and the mounting seat is provided with an arc-shaped groove for embedding a matching round tube. A rotary clamping cylinder is fixedly connected between the two groups of mounting seats, and the output end of the rotary clamping cylinder is fixedly connected with a connecting block, and at least one group of limiting rods is fixedly connected to the connecting block. The bottom of the connecting block is fixedly connected with a left-right symmetrical arc-shaped clamping block.

[0013] Furthermore, the bottom of the arc-shaped clamping block is in contact and connection with the top of the circular tube respectively.

[0014] Furthermore, the bottom of the limiting rod is in contact with the top of the rotary clamping cylinder.

[0015] Furthermore, the front and rear clamping assemblies include an air inlet, a cylinder, a fixed block, a first rotating shaft, a fixed seat, an elliptical groove, a second rotating shaft and an L-shaped clamping block. The frame located at the front end of the mounting seat is fixedly connected with left and right symmetrical fixed blocks, the fixed blocks are fixedly connected with the first rotating shaft, the first rotating shaft is rotatably connected with an L-shaped clamping block, the second rotating shaft passes through the lower end of the L-shaped clamping block and is fixedly connected to the L-shaped clamping block, the lower end of the frame is fixedly connected with left and right symmetrical cylinders, the cylinders are fixedly connected with air inlets, the output ends of the cylinders are fixedly connected with fixed seats, the fixed seats are provided with elliptical grooves, and the elliptical grooves are respectively limited and slidably connected with the corresponding second rotating shafts.

[0016] Furthermore, a protrusion is fixedly connected to the lower end of the mounting ring.

[0017] Furthermore, a groove for embedding the matching protrusion is formed at the front end of the mounting seat.

[0018] Furthermore, a boss is provided on one side of the upper end of the L-shaped clamping block close to the positioning groove, so as to facilitate clamping of the boss embedded in the groove.

[0019] The utility model has the following technical effects:

[0020] 1. The utility model places a round tube on the top clamping assembly, which clamps and fixes the round tube in a vertical direction, sleeves a mounting ring on the outside of the round tube, and clamps and fixes the mounting ring by front and rear clamping assemblies, thereby improving the stability of clamping the round tube and the mounting ring, so as to cooperate with the machine tool to process the corresponding position of the workpiece and improve the processing accuracy.

[0021] 2. The utility model places two groups of round tubes in the arc grooves respectively, and then starts the rotary clamping cylinder. The output end of the rotary clamping cylinder drives the connecting block, the limiting rod and the arc clamping block to rotate downward. When the bottom of the limiting rod contacts the top of the rotary clamping cylinder, the bottom of the arc clamping block just contacts the top of the round tube. At this time, the upper and lower ends of the round tube are limited, thereby achieving stable clamping of the round tube.

[0022] 3. According to the utility model, after the upper and lower ends of the circular tube are limited by the arc-shaped clamping block and the arc-shaped groove, the mounting ring is sleeved on the outer side of the circular tube, and the protrusion at the lower end of the mounting ring is embedded in the groove at the front end of the mounting seat. At this time, gas is introduced into the air inlet, and the output end of the cylinder drives the fixed seat and the elliptical groove to move upward. The second rotating shaft rotates around the first rotating shaft in the direction close to the mounting ring under the limiting and guiding action of the elliptical groove, and the second rotating shaft drives the L-shaped clamping block to rotate in the direction close to the mounting ring. When the boss at the upper end of the L-shaped clamping block contacts the protrusion at the lower end of the mounting ring, the cylinder stops running. At this time, the front and rear ends of the mounting ring are accurately clamped and fixed by the L-shaped clamping block, thereby improving the accuracy and stability of clamping the circular tube and the mounting ring, so as to cooperate with the machine tool to process the corresponding position of the workpiece and improve the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A three-dimensional diagram of the cylinder clamping fixture of the utility model;

[0025] Figure 2 It is a front view of the cylinder clamping fixture of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the cylinder clamping fixture of the utility model;

[0027] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0028] Figure 5 for Figure 3 The enlarged view of point B in the middle;

[0029] Figure 6 It is a structural schematic diagram of the L-shaped clamping block of the utility model.

[0030] The numbers in the figure represent:

[0031] 1. Frame; 2. Double-station clamping assembly; 21. Top clamping assembly; 211. Rotating clamping cylinder; 212. Connecting block; 213. Limit rod; 214. Arc clamping block; 215. Mounting seat; 216. Arc groove; 22. Front and rear clamping assemblies; 221. Air inlet; 222. Cylinder; 223. Fixed block; 224. First rotating shaft; 225. Positioning groove; 226. Fixed seat; 227. Elliptical groove; 228. Second rotating shaft; 229. L-shaped clamping block; 3. Round tube; 4. Mounting ring. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The utility model is further described below in conjunction with embodiments.

[0034] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0035] Example 1

[0036] Please refer to the instruction manual Figure 1-6 , a cylinder clamping fixture, including a frame 1;

[0037] The frame 1 is connected to a plurality of groups of front-to-back symmetrical double-station clamping assemblies 2 from left to right for clamping the round tube 3 and the mounting ring 4 at multiple angles;

[0038] The double-station pressing assembly 2 is connected to the round tube 3 and the mounting ring 4 respectively, and the mounting ring 4 is sleeved on the outside of the round tube 3 and is slidably connected to the round tube 3;

[0039] The double-station clamping assembly 2 includes a top clamping assembly 21 and front and rear clamping assemblies 22. The top clamping assembly 21 and the front and rear clamping assemblies 22 are connected to the frame 1. The top clamping assembly 21 is connected to the front and rear clamping assemblies 22. The top clamping assembly 21 is connected to the round tube 3. The front and rear clamping assemblies 22 are connected to the mounting ring 4.

[0040] The round tube 3 is placed on the top clamping assembly 21, the top clamping assembly 21 clamps and fixes the round tube 3 in the vertical direction, the mounting ring 4 is sleeved on the outside of the round tube 3, and the front and rear clamping assemblies 22 clamp and fix the mounting ring 4, thereby improving the stability of the clamping of the round tube 3 and the mounting ring 4, so as to cooperate with the machine tool to process the corresponding position of the workpiece and improve the processing accuracy;

[0041] The top clamping assembly 21 includes a rotary clamping cylinder 211, a connecting block 212, a limiting rod 213, an arc-shaped clamping block 214, a mounting seat 215 and an arc-shaped groove 216. The top of the frame 1 is fixedly connected with a left-right symmetrical mounting seat 215, and the mounting seat 215 is provided with an arc-shaped groove 216 for fitting the round tube 3. The rotary clamping cylinder 211 is fixedly connected between the two groups of mounting seats 215. The output end of the rotary clamping cylinder 211 is fixedly connected with a connecting block 212, and at least one group of limiting rods 213 is fixedly connected to the connecting block 212. The bottom of the connecting block 212 is fixedly connected with a left-right symmetrical arc-shaped clamping block 214.

[0042] The bottom of the arc-shaped clamping block 214 is in contact and connected with the top of the round tube 3 respectively;

[0043] The bottom of the limiting rod 213 is in contact with the top of the rotary clamping cylinder 211;

[0044] Place two groups of round tubes 3 in the arc groove 216 respectively, and then start the rotary clamping cylinder 211. The output end of the rotary clamping cylinder 211 drives the connecting block 212, the limiting rod 213 and the arc clamping block 214 to rotate downward. When the bottom of the limiting rod 213 contacts the top of the rotary clamping cylinder 211, the bottom of the arc clamping block 214 just contacts the top of the round tube 3. At this time, both the upper and lower ends of the round tube 3 are limited, thereby achieving stable clamping of the round tube 3.

[0045] The front and rear clamping components 22 include an air inlet 221, a cylinder 222, a fixed block 223, a first rotating shaft 224, a fixed seat 226, an elliptical groove 227, a second rotating shaft 228 and an L-shaped clamping block 229. The frame 1 located at the front end of the mounting seat 215 is fixedly connected with a left-right symmetrical fixed block 223, each of which is fixedly connected with a first rotating shaft 224, each of which is rotatably connected with an L-shaped clamping block 229, each of which passes through the lower end of the L-shaped clamping block 229 and is fixedly connected to the L-shaped clamping block 229, and the lower end of the frame 1 is fixedly connected with a left-right symmetrical cylinder 222, each of which is fixedly connected with an air inlet 221, and each of which is fixedly connected with a fixed seat 226 at its output end, each of which is fixedly connected with an elliptical groove 227, and each of which is slidingly connected with the corresponding second rotating shaft 228 in a limited position;

[0046] The lower end of the mounting ring 4 is fixedly connected with a protrusion;

[0047] The front end of the mounting seat 215 is provided with a groove for the mating protrusion to be embedded;

[0048] A boss is provided on one side of the upper end of the L-shaped clamping block 229 near the positioning groove 225, so as to facilitate clamping the boss embedded in the groove;

[0049] When the upper and lower ends of the circular tube 3 are limited by the arc-shaped clamping block 214 and the arc-shaped groove 216, the mounting ring 4 is sleeved on the outer side of the circular tube 3, and the convex block at the lower end of the mounting ring 4 is embedded in the groove at the front end of the mounting seat 215. At this time, gas is introduced into the air inlet 221, and the output end of the cylinder 222 drives the fixing seat 226 and the elliptical groove 227 to move upward. The second rotating shaft 228 rotates around the first rotating shaft 224 in the direction close to the mounting ring 4 under the limiting and guiding action of the elliptical groove 227. The second rotating shaft 228 drives the L-shaped clamping block 229 to rotate in the direction close to the mounting ring 4. When the boss at the upper end of the L-shaped clamping block 229 contacts the convex block at the lower end of the mounting ring 4, the cylinder 222 stops running. At this time, the front and rear ends of the mounting ring 4 are accurately clamped and fixed by the L-shaped clamping block 229, thereby improving the accuracy and stability of clamping the circular tube 3 and the mounting ring 4, so as to cooperate with the machine tool to process the corresponding position of the workpiece and improve the processing accuracy.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cylinder clamping fixture, comprising a frame (1), characterized in that: The frame (1) is connected to a plurality of groups of front-to-back symmetrical double-station clamping assemblies (2) for clamping the round tube (3) and the mounting ring (4) at multiple angles from left to right; The double-station pressing assembly (2) is connected to the circular tube (3) and the mounting ring (4) respectively; the mounting ring (4) is sleeved on the outer side of the circular tube (3) and is slidably connected to the circular tube (3); The double-station clamping assembly (2) comprises a top clamping assembly (21) and front and rear clamping assemblies (22); the frame (1) is connected with the top clamping assembly (21) and the front and rear clamping assemblies (22); the top clamping assembly (21) is connected to the front and rear clamping assemblies (22); the top clamping assembly (21) is connected to the round tube (3); and the front and rear clamping assemblies (22) are connected to the mounting ring (4).

2. The cylinder clamping fixture according to claim 1, characterized in that: The top clamping assembly (21) comprises a rotary clamping cylinder (211), a connecting block (212), a limiting rod (213), an arc-shaped clamping block (214), a mounting seat (215) and an arc-shaped groove (216); the top of the frame (1) is fixedly connected with a left-right symmetrical mounting seat (215); the mounting seat (215) is provided with an arc-shaped groove (216) for fitting the circular tube (3) to be embedded; the rotary clamping cylinder (211) is fixedly connected between the two groups of mounting seats (215); the output end of the rotary clamping cylinder (211) is fixedly connected with a connecting block (212); at least one group of limiting rods (213) is fixedly connected to the connecting block (212); and the bottom of the connecting block (212) is fixedly connected with a left-right symmetrical arc-shaped clamping block (214).

3. The cylinder clamping fixture according to claim 2, characterized in that: The bottom of the arc-shaped clamping block (214) is in contact and connected with the top of the circular tube (3).

4. The cylinder clamping fixture according to claim 3, characterized in that: The bottom of the limiting rod (213) is in contact with and connected to the top of the rotary clamping cylinder (211).

5. The cylinder clamping fixture according to claim 4, characterized in that: The front and rear clamping components (22) include an air inlet (221), a cylinder (222), a fixing block (223), a first rotating shaft (224), a fixing seat (226), an elliptical groove (227), a second rotating shaft (228) and an L-shaped clamping block (229). The frame (1) located at the front end of the mounting seat (215) is fixedly connected to the fixing blocks (223) which are symmetrical on both sides. The fixing blocks (223) are fixedly connected to the first rotating shaft (224). The first rotating shaft (224) is rotatably connected to the L-shaped clamping blocks (229). The second rotating shaft (228) passes through the lower end of the L-shaped clamping block (229) and is fixedly connected to the L-shaped clamping block (229). The lower end of the frame (1) is fixedly connected to a left-right symmetrical cylinder (222). The cylinder (222) is fixedly connected to an air inlet (221). The output end of the cylinder (222) is fixedly connected to a fixed seat (226). The fixed seat (226) is provided with an elliptical groove (227). The elliptical groove (227) is respectively connected to the corresponding second rotating shaft (228) in a limited sliding manner.

6. The cylinder clamping fixture according to claim 5, characterized in that: A protrusion is fixedly connected to the lower end of the mounting ring (4).

7. The cylinder clamping fixture according to claim 6, characterized in that: The front end of the mounting seat (215) is provided with a groove for the matching protrusion to be embedded.

8. The cylinder clamping fixture according to claim 7, characterized in that: A boss is provided on one side of the upper end of the L-shaped clamping block (229) close to the positioning groove (225) so as to facilitate clamping of the boss embedded in the groove.

Images