Positioning clamp for hot working of metal surface
By designing a driving structure with limit blocks and guide grooves, the problem of long material feeding time in existing positioning fixtures has been solved, realizing automatic clamping and fixing of cylindrical metal parts, and improving handling efficiency and safety.
Patent Information
- Application Number
- CN202422793282.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing positioning fixtures require a long time to release cylindrical metal parts when clamping them, resulting in low handling efficiency.
A positioning fixture with a driving structure including a limiting block and a guide groove was designed. By setting the driving structure of the limiting block and the guide groove, and the driving structure composed of guide rods, the tightening and opening of the fixture are controlled.
The positioning fixture automatically retracts and extends when clamping metal parts, saving waiting time for unloading and improving handling efficiency. The L-shaped jaws and hook blocks work together to fix cylindrical metal parts and prevent them from falling off.
Smart Images
Figure CN223572553U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to metal surface hot working technical field more specifically, relate to a kind of positioning fixture for metal surface hot working. BACKGROUND
[0002] In modern industrial field, metal material has been occupying the vital position. With the continuous progress of science and technology and the increasing requirement of material performance in various industries, metal surface hot working technology emerges as the times require and develops continuously. From traditional manufacturing to aerospace, automobile industry, electronic equipment and other high-tech fields, the performance requirement of metal material is not only limited to its inherent characteristics. Therefore, the surface performance of metal material needs to be changed by heating, and the surface of metal is hot worked. Positioning fixture is needed when metal is hot worked.
[0003] However, the existing positioning fixture needs multiple clamping arms to clamp cylindrical metal parts, and needs to control the driving structure again to release the multiple clamping arms to complete the discharging work when clamping to the specified position. The time required to release the clamping arm is long, and the efficiency of handling is not high. In view of this, we propose a positioning fixture for metal surface hot working. SUMMARY
[0004] The utility model aims at overcoming the deficiency of prior art, adapting to the actual need, provide a kind of positioning fixture for metal surface hot working to solve the technical problem that current fixture needs to wait for a long time to release clamping arm when discharging.
[0005] To solve the above technical problems, the utility model provides the following technical scheme: a kind of positioning fixture for metal surface hot working, including frame, the limiting frame being arranged below frame, the guide sleeve being installed in frame and the four mounting plates being installed at the four corners of the outside of frame, the center of the limiting frame is equipped with rectangular through slot, the limiting frame is fixedly connected with the outer side of the pressure ring, the outer side of the pressure ring is equidistantly ring-shaped and equipped with four mounting blocks, the top and bottom of the guide sleeve are through, the guide sleeve is equipped with guide groove along the circumference, and the guide groove is through the inside and outside of guide sleeve, the guide cylinder is sleeved in the inside of the guide sleeve, the front end of the guide cylinder is equipped with guide rod, and the guide rod is slidably connected with guide groove, the bottom end of the guide cylinder is equipped with connecting rod, and the connecting rod is slidably connected in the bottom end of frame, the bottom end of the connecting rod is equipped with limiting block, and the limiting block is matched with through slot, the top of the mounting plate is rotatably connected with connecting plate, the other end of the connecting plate is rotatably connected with L-shaped clamping arm, the other end of four clamping arms is rotatably connected with four mounting blocks respectively, when the guide rod is located at the lowest point of guide groove, the long axis of limiting block is perpendicular to the long axis of through slot, when the guide groove is located at the highest point of guide groove, the long axis of limiting block is parallel to the long axis of through slot.
[0006] Preferably, the top end of the frame body is fixedly connected with a mounting rack, and the top end of the mounting rack is fixedly connected with an external driving device.
[0007] Preferably, the two sides of the mounting rack are slidably connected with guide rods, and the bottom end of the guide rod is fixedly connected with a limiting frame.
[0008] Preferably, the head end of the clamping arm is provided with a clamping jaw, the clamping jaw is of an L-shaped structure, the top end of the short arm of the L-shaped structure is provided with a hook block, and the hook block is provided with an arc surface towards one side of the long arm of the L-shaped structure.
[0009] Preferably, the guide groove is composed of four continuous Z-shaped grooves, and the guide rod makes a periodic undulating rotary motion along the Z-shaped groove.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] 1. The limiting structure composed of the limiting block and the through groove and the driving structure composed of the limiting frame, the guide groove and the guide rod can control the tightening and opening of the clamp. The utility model automatically retracts and releases when clamping the metal piece to be placed on the ground or the workbench, thereby saving the time for waiting for the release of the material and improving the efficiency of the carrying.
[0012] 2. The L-shaped clamping jaw is provided with the hook block, the L-shaped clamping jaw and the hook block can be inserted into the recessed groove of the cylindrical metal piece, the utility model can better fix the cylindrical metal piece and prevent the metal piece from falling off.
[0013] 3. The Z-shaped guide groove is provided, the guide rod makes a periodic undulating rotary motion in the Z-shaped groove, the utility model can drive the guide cylinder to rotate, thereby changing the position of the limiting block between 0° and 90° and controlling the limiting block to pass through the through groove. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the utility model;
[0015] Figure 2 It is a sectional view structural schematic view when the utility model is used;
[0016] Figure 3 It is a structural schematic view of the utility model Figure 2 It is an enlarged view of A in the utility model;
[0017] Figure 4 It is a structural schematic view of the guide sleeve of the utility model;
[0018] Figure 5 It is a use state schematic view of the utility model.
[0019] The figure label explanation: 1, frame; 101, mounting bracket; 2, limit frame; 201, through slot; 202, compression ring; 203, mounting block; 204, guide rod; 3, guide sleeve; 301, guide groove; 302, guide cylinder; 303, guide rod; 304, connecting rod; 305, limit block; 4, mounting plate; 401, connecting plate; 402, clamping arm; 403, clamping jaw; 404, hook block; 405, camber. DETAILED DESCRIPTION
[0020] As Figures 1 to 5 shown, the utility model relates to a kind of positioning fixture for metal surface hot working, including frame 1, limit frame 2 being arranged in the lower of frame 1, guide sleeve 3 being installed in frame 1 and four mounting plates 4 being installed in the four corners of the outside of frame 1, the center of limit frame 2 is equipped with rectangular through slot 201, the outside of limit frame 2 is fixedly connected with compression ring 202, the outside of compression ring 202 is equidistant ring type and equipped with four mounting blocks 203, the top end and bottom end of guide sleeve 3 are through, guide sleeve 3 is equipped with guide groove 301 along the circumference, and guide groove 301 is through the inside and outside of guide sleeve 3, guide cylinder 302 is sleeved in the inside of guide sleeve 3, the front end of guide cylinder 302 is equipped with guide rod 303, and guide rod 303 is slidably connected with guide groove 301, the bottom end of guide cylinder 302 is equipped with connecting rod 304, and connecting rod 304 is slidably connected in the bottom end of frame 1, the bottom end of connecting rod 304 is equipped with limit block 305, and limit block 305 is adapted with through slot 201, the top end of mounting plate 4 is rotatably connected with connecting plate 401, the other end of connecting plate 401 is rotatably connected with L-shaped clamping arm 402, the other end of four clamping arms 402 is rotatably connected with four mounting blocks 203 respectively, when guide rod 303 is located at the lowest of guide groove 301, the long axis of limit block 305 and the long axis of through slot 201 are perpendicular to each other, when guide groove 301 is located at the highest of guide groove 301, the long axis of limit block 305 and the long axis of through slot 201 are parallel. The utility model is through being equipped with the limit structure of limit block 305 and through slot 201, and the drive structure of limit frame 2, guide groove 301 and guide rod 303, can control the tightening and opening of clamp. The utility model is automatically retracted when clamping metal piece is placed on the ground or workbench, saves the time of waiting for material, improves the efficiency of handling.
[0021] Further, the top end of frame 1 is fixedly connected with mounting bracket 101, and the top end of mounting bracket 101 is fixedly connected with external driving equipment.
[0022] Further, both sides of the mounting frame 101 are slidably connected with guide rods 204, bottom ends of the guide rods 204 are fixedly connected with the limiting frame 2. The utility model discloses through setting up guide rod 204, through mounting frame 101 further restricts the moving track of frame body 1.
[0023] In the embodiment of the utility model, in order to make the clamping arm 402 can better clamp the cylindrical metal piece with recessed groove, such as Figure 3 The utility model discloses the specific structure of clamping arm 402, the head of clamping arm 402 is equipped with the claw 403, the claw 403 is L shaped structure, and the short arm top of L shaped structure is equipped with the hook block 404, one side of the hook block 404 towards L shaped structure long arm is equipped with the cambered surface 405. The utility model discloses through setting up L shaped claw 403, setting up hook block 404 simultaneously, can make L shaped claw 403 and hook block 404 cooperate, insert into the recessed groove of cylindrical metal piece. The utility model discloses better fixed cylindrical metal piece, prevent the metal piece from falling off.
[0024] As another embodiment of the utility model, in order to make the guide groove 301 can drive the vertical movement of guide rod 303, such as Figure 4 The utility model discloses the specific structure of guide groove 301, the guide groove 301 is four continuous Z shaped groove group, and guide rod 303 along Z shaped groove does the undulating rotary motion. The utility model discloses through setting up Z shaped guide groove 301, makes guide rod 303 do the periodic undulating rotary motion in Z shaped groove. The utility model discloses can make guide rod 303 drive guide cylinder 302 rotation, thereby makes the position of limiting block 305 between 0 ° and 90 ° change, controls limiting block 305 through the through groove 201.
[0025] Working principle: the embodiment provides a kind of positioning fixture for metal surface hot working, when using, external driving structure drives mounting frame 101 to move, mounting frame 101 drives device whole to move downwards, when contact metal piece top by pressing ring 202 and limiting frame 2, through guide rod 204 in mounting frame 101 sliding, so that frame body 1 can continue to move downwards, frame body 1 moves and drives limiting block 305 to contact the top of metal piece, the limiting of metal piece makes limiting block 305 drive connecting rod 304 to move upwards, connecting rod 304 drives guide cylinder 302 to move upwards, guide cylinder 302 drives guide rod 303 to move upwards, guide rod 303 along guide groove 301 slides, so that guide cylinder 302 drives limiting block 305 to rotate, so that limiting block 305 can enter the through groove 201, pull up, limiting block 305 enters the through groove 201, so that frame body 1 can move upwards a portion, to drive mounting plate 4 to move, mounting plate 4 is pulled tightly by connecting plate 401 clamping arm 402, clamping arm 402 is rotated on pressing ring 202 by mounting block 203, so that clamping arm 402 clamps metal piece.
[0026] The embodiments of the present application disclose the preferred embodiments, but are not limited to this, and the ordinary skilled in the art can easily understand the spirit of the present application according to the above-mentioned embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the present application, they are within the protection scope of the present application.
Claims
1. A positioning fixture for hot working of metal surfaces, characterized in that, The system includes a frame (1), a limiting frame (2) located below the frame (1), a guide sleeve (3) installed inside the frame (1), and four mounting plates (4) installed at the four corners of the outer side of the frame (1). The limiting frame (2) has a rectangular through groove (201) at its center. A pressure ring (202) is fixedly connected to the outer side of the limiting frame (2). Four mounting blocks (203) are equidistantly arranged in a ring shape on the outer side of the pressure ring (202). The top and bottom ends of the guide sleeve (3) are connected. The guide sleeve (3) has guide grooves (301) distributed circumferentially, and the guide grooves (301) penetrate the inner and outer sides of the guide sleeve (3). A guide cylinder (302) is fitted inside the guide sleeve (3). A guide rod (303) is provided at the front end of the guide cylinder (302), and the guide rod (303) is slidably connected to the guide groove (301). Next, the bottom end of the guide cylinder (302) is provided with a connecting rod (304), and the connecting rod (304) is slidably connected to the bottom end of the frame (1). The bottom end of the connecting rod (304) is provided with a limiting block (305), and the limiting block (305) is adapted to the through groove (201). The top end of the mounting plate (4) is rotatably connected with a connecting plate (401), and the other end of the connecting plate (401) is rotatably connected with an L-shaped clamping arm (402). The other ends of the four clamping arms (402) are respectively rotatably connected to four mounting blocks (203). When the guide rod (303) is located at the lowest point of the guide groove (301), the long axis of the limiting block (305) is perpendicular to the long axis of the through groove (201). When the guide groove (301) is located at the highest point of the guide groove (301), the long axis of the limiting block (305) is parallel to the long axis of the through groove (201).
2. A positioning fixture for hot working of metal surfaces according to claim 1, characterized in that, The top of the frame (1) is fixedly connected to a mounting bracket (101), and the top of the mounting bracket (101) is fixedly connected to an external driving device.
3. A positioning fixture for hot working of metal surfaces according to claim 2, characterized in that, Guide rods (204) are slidably connected to both sides of the mounting bracket (101), and the bottom end of the guide rods (204) is fixedly connected to the limiting bracket (2).
4. A positioning fixture for hot working of metal surfaces according to claim 1, characterized in that, The clamping arm (402) has a clamping claw (403) at its head end. The clamping claw (403) has an L-shaped structure, and the top end of the short arm of the L-shaped structure has a hook block (404). The hook block (404) is curved (405) on the side facing the long arm of the L-shaped structure.
5. A positioning fixture for hot working of metal surfaces according to claim 1, characterized in that, The guide groove (301) consists of four continuous Z-shaped grooves, and the guide rod (303) rotates along the Z-shaped grooves in an undulating motion.