Limiting device

Abstract

The utility model belongs to the technical field of limiting devices, and particularly relates to a limiting device which comprises a machining base. The top of the machining base is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with a clamping plate, and a through groove is formed in the top of the machining base. Through the arrangement of the auxiliary mechanism, a metal product needing to be clamped and limited can be placed on the machining base, an air cylinder is started to drive clamping plates to move, the two clamping plates are made to be close to the metal product and attached to the outer wall of the metal product, and an auxiliary plate is firstly attached to the outer wall of the metal product and is pressed to gradually move into an auxiliary groove; in the moving process, the clamping plate gradually moves downwards and drives the positioning rod and the gear on the clamping plate to move downwards, so that the gear enters the through groove and makes contact with the rack, meanwhile, through cooperation of the ratchet wheel and the pawl, the positioning rod can only rotate in one direction and is matched with the rack to limit rotation of the gear, and the clamping plate is subjected to positioning limitation; and the metal product does not move towards the metal product.

Description

Technical Field

[0001] The utility model belongs to the technical field of limiting devices, in particular to a limiting device. Background Art

[0002] Metal products occupy an important position in our lives. The metal products industry includes structural metal products manufacturing, metal tool manufacturing, container and metal packaging container manufacturing, stainless steel and similar daily metal products manufacturing, etc. When processing metal products, limit clamps are required to limit and clamp the metal products.

[0003] When clamping and positioning thin-walled metal products, the clamping force needs to be controlled to avoid deformation of the metal products due to excessive clamping. During batch processing, the clamping force needs to be controlled for each metal product shell, which is troublesome, consumes a lot of energy of the operators, and affects the processing efficiency. Therefore, a limit device is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology and solve the problem that thin-walled metal products need to control the clamping force when clamping and positioning to avoid deformation of the metal products caused by excessive clamping, while in batch processing, each metal product shell needs to control the clamping force, which is troublesome, consumes a lot of energy of the operators, and affects the processing efficiency, a limit device is proposed.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows: a limiting device described in the utility model comprises a processing seat; a cylinder is fixedly connected to the top of the processing seat, a clamping plate is fixedly connected to the output end of the cylinder, a through groove is provided on the top of the processing seat, a rack is fixedly connected to the inner side wall of the through groove, and an auxiliary groove is provided on a side of the clamping plate away from the cylinder;

[0006] The cam is provided with a plurality of locking plates, the locking plates having a spring, a spring, and a spring which are connected along the top end of the bracket to the locking plate.

[0007] Preferably, a blocking block is fixedly connected to the inner wall of the positioning groove, and a through hole adapted to the transmission rod is opened on the blocking block. By setting the blocking block, the positioning groove can be blocked to prevent debris generated by processing from collapsing into the positioning groove and affecting the operation of the ratchet and the pawl.

[0008] Preferably, the inner side wall of the inclined groove is fixedly connected with a guide rod, one end of which passes through the sliding block and is fixedly connected to the inner side wall of the inclined groove. The spring and the sliding block can be positioned and guided by the setting of the guide rod.

[0009] Preferably, a guide groove is provided on the inner side wall of the through groove, a guide block is slidably connected in the guide groove, one end of the guide block extends out of the guide groove and is fixedly connected to a connecting block, the top of the connecting block extends out of the through groove and is fixedly connected to the bottom of the clamping plate, and the movement of the clamping plate can be positioned and guided by the cooperation of the guide groove, the guide block and the connecting block to avoid deviation during the movement.

[0010] Preferably, universal wheels are fixedly connected to the four sides of the bottom of the processing seat, and brake pads are arranged inside the universal wheels. The movement and positioning of the device can be facilitated by the cooperation between the universal wheels and the brake pads therein.

[0011] Preferably, the bottom of the processing seat is fixedly connected to a hydraulic telescopic rod, the output end of the hydraulic telescopic rod is fixedly connected to a base plate, and the bottom of the base plate is provided with an anti-slip protrusion. Through the cooperation of the hydraulic telescopic rod and the base plate, the height of the processing seat can be adjusted to facilitate subsequent processing.

[0012] Preferably, a sponge pad is provided on the side of the clamping plate away from the cylinder, and a sponge pad is provided on the side of the auxiliary plate away from the cylinder. By providing a sponge pad on the side of the clamping plate away from the cylinder and a sponge pad on the side of the auxiliary plate away from the cylinder, it can be ensured that the protection of the metal product is improved when the metal product is clamped.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a limiting device. Through the setting of an auxiliary mechanism, a metal product that needs to be clamped and limited can be placed on a processing seat, and the cylinder is started to drive the clamping plate to move, so that the two clamping plates are close to the metal product and fit against the outer wall of the metal product. In this process, the auxiliary plate first fits against the outer wall of the metal product and is pressed to gradually move into the auxiliary groove. During the movement, it gradually moves downward and drives the positioning rod and the gear thereon to move downward, so that the gear enters the through groove and contacts the rack. At the same time, through the cooperation of the ratchet and the pawl, the positioning rod can only rotate in one direction. With the cooperation of the rack to limit the rotation of the gear, the clamping plate is restricted in positioning and no longer moves toward the direction of the metal product.

[0015] 2. The utility model provides a limiting device, which can position and guide the movement of the clamping plate through the cooperation of the guide groove, the guide block and the connecting block to avoid deviation during the movement. The height of the processing seat can be adjusted through the cooperation of the hydraulic telescopic rod and the bottom plate to facilitate subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the clamping plate in the utility model;

[0019] Figure 3 This is one of the cross-sectional structural diagrams of the clamping plate in the utility model;

[0020] Figure 4 This is the second cross-sectional structural diagram of the clamping plate in the utility model;

[0021] Figure 5 It is a cross-sectional structural diagram of a processing seat in the utility model.

[0022] Legend:

[0023] 1. Processing seat; 2. Cylinder; 3. Clamping plate; 4. Rack; 5. Auxiliary groove; 6. Auxiliary mechanism; 61. Oblique groove; 62. Spring; 63. Auxiliary plate; 64. Positioning groove; 65. Gear; 66. Positioning rod; 67. Ratchet; 68. Paw; 7. Block; 8. Guide rod; 9. Connecting block; 10. Universal wheel; 11. Hydraulic telescopic rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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.

[0025] Specific examples are given below.

[0026] See also Figure 1-Figure 5The utility model provides a limiting device, including a processing seat 1; a cylinder 2 is fixedly connected to the top of the processing seat 1, a clamping plate 3 is fixedly connected to the output end of the cylinder 2, a through groove is opened on the top of the processing seat 1, a rack 4 is fixedly connected to the inner side wall of the through groove, and an auxiliary groove 5 is opened on the side of the clamping plate 3 away from the cylinder 2;

[0027] An auxiliary mechanism 6 is provided in the clamping plate 3. The auxiliary mechanism 6 includes an oblique groove 61 provided on the inner side wall of the auxiliary groove 5. A sliding block is slidably connected in the oblique groove 61. One end of the sliding block is elastically connected to the inner side wall of the oblique groove 61 through a spring 62. One end of the sliding block extends out of the oblique groove 61 and is fixedly connected to the auxiliary plate 63. A positioning groove 64 is provided at the bottom of the auxiliary plate 63. A transmission rod is rotatably connected to the top wall of the positioning groove 64. The bottom end of the transmission rod extends out of the positioning groove 64 and is fixedly connected to a gear 65. The gear 65 is meshed with the rack 4. A positioning rod 66 is fixedly connected to the inner top wall of the positioning groove 64. A pawl 68 is rotatably connected to the outer wall of the positioning rod 66. A ratchet 67 is fixedly connected to the outer wall of the transmission rod located in the positioning groove 64. The ratchet 67 is meshed with the pawl 68. When working, the metal product that needs to be clamped and limited can be placed on the processing seat 1 through the setting of the auxiliary mechanism 6, and the air is started. The cylinder 2 drives the clamping plate 3 to move, so that the two clamping plates 3 are close to the metal product and fit against the outer wall of the metal product. During this process, the auxiliary plate 63 first fits against the outer wall of the metal product and is pressed to gradually move toward the auxiliary groove 5. The auxiliary plate 63 cooperates with the inclined groove 61 and the sliding block to gradually move downward during the movement, and then drives the positioning rod 66 and the gear 65 thereon to move downward, so that the gear 65 enters the through groove and makes the gear 65 contact with the rack 4. At the same time, through the cooperation of the ratchet 67 and the pawl 68, the positioning rod 66 can only rotate in one direction, and cooperates with the rotation restriction of the rack 4 on the gear 65, that is, when the auxiliary plate 63 is pressed to enter the auxiliary groove 5 and makes the gear 65 enter the through groove and contact with the rack 4, the clamping plate 3 is restricted by positioning and no longer moves toward the metal product, ensuring that no adjustment is required when clamping and limiting the metal product, and avoiding clamping damage to the metal product.

[0028] Further, such as Figure 2 As shown, a shielding block 7 is fixedly connected to the inner wall of the positioning groove 64, and a through hole matching the transmission rod is provided on the shielding block 7. During operation, the positioning groove 64 can be shielded by the setting of the shielding block 7 to prevent the debris generated by the processing from collapsing into the positioning groove 64 and affecting the operation of the ratchet 67 and the pawl 68.

[0029] Further, such as Figure 3 As shown, the inner side wall of the inclined groove 61 is fixedly connected with a guide rod 8, one end of which passes through the sliding block and is fixedly connected to the inner side wall of the inclined groove 61. During operation, the spring 62 and the sliding block can be positioned and guided by the setting of the guide rod 8.

[0030] Further, such as Figure 5 As shown, a guide groove is provided on the inner side wall of the through groove, a guide block is slidably connected in the guide groove, one end of the guide block extends out of the guide groove and is fixedly connected to a connecting block 9, and the top of the connecting block 9 extends out of the through groove and is fixedly connected to the bottom of the clamping plate 3. During operation, the movement of the clamping plate 3 can be positioned and guided by the cooperation of the guide groove, the guide block and the connecting block 9 to avoid deviation during the movement.

[0031] Further, such as Figure 1 and Figure 5 As shown, the four sides of the bottom of the processing seat 1 are fixedly connected with universal wheels 10, and brake pads are arranged in the universal wheels 10. During operation, the movement and positioning of the device can be facilitated by the cooperation between the universal wheels 10 and the brake pads therein.

[0032] Further, such as Figure 1 and Figure 5 As shown, the bottom of the processing seat 1 is fixedly connected with a hydraulic telescopic rod 11, and the output end of the hydraulic telescopic rod 11 is fixedly connected with a bottom plate, and the bottom of the bottom plate is provided with anti-slip protrusions. During operation, the height of the processing seat 1 can be adjusted by the cooperation of the hydraulic telescopic rod 11 and the bottom plate, so as to facilitate subsequent processing.

[0033] Further, such as Figure 2 and Figure 3 As shown, a sponge pad is provided on the side of the clamping plate 3 away from the cylinder 2, and a sponge pad is provided on the side of the auxiliary plate 63 away from the cylinder 2. During operation, the sponge pad is provided on the side of the clamping plate 3 away from the cylinder 2, and the sponge pad is provided on the side of the auxiliary plate 63 away from the cylinder 2 to ensure that the metal product is clamped and the protection of the metal product is improved.

[0034] Working principle: Place the metal product that needs to be clamped and limited on the processing seat 1, and start the cylinder 2 to drive the clamping plate 3 to move, so that the two clamping plates 3 are close to the metal product and fit against the outer wall of the metal product. In this process, the auxiliary plate 63 first fits against the outer wall of the metal product and is pressed to gradually move toward the auxiliary groove 5. The auxiliary plate 63 cooperates with the inclined groove 61 and the sliding block to gradually move downward during the movement, and then drives the positioning rod 66 and the gear 65 thereon to move downward, so that the gear 65 enters the through groove and makes the gear 65 contact with the rack 4. At the same time, through the cooperation of the ratchet 67 and the pawl 68, the positioning rod 66 can only rotate in one direction, and cooperate with the rack 4 to limit the rotation of the gear 65, that is, when the auxiliary plate 63 is pressed into the auxiliary groove 5 and makes the gear 65 enter the through groove and contact with the rack 4, the clamping plate 3 is restricted by positioning and no longer moves toward the metal product, ensuring that no adjustment is required when clamping and limiting the metal product, and avoiding clamping damage to the metal product.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A limiting device, comprising a processing seat (1); a cylinder (2) is fixedly connected to the top of the processing seat (1), and a clamping plate (3) is fixedly connected to the output end of the cylinder (2), characterized in that: A through groove is formed on the top of the processing seat (1), a rack (4) is fixedly connected to the inner wall of the through groove, and an auxiliary groove (5) is formed on a side of the clamping plate (3) away from the cylinder (2); The clamping plate (3) is provided with an auxiliary mechanism (6), the auxiliary mechanism (6) comprising an inclined groove (61) provided on the inner side wall of the auxiliary groove (5), a sliding block being slidably connected in the inclined groove (61), one end of the sliding block being elastically connected to the inner side wall of the inclined groove (61) through a spring (62), one end of the sliding block extending out of the inclined groove (61) and being fixedly connected to an auxiliary plate (63), a positioning groove (64) being provided at the bottom of the auxiliary plate (63), and the positioning groove (64) ) is rotatably connected to the inner top wall of the transmission rod, a positioning groove (64) is extended from the bottom end of the transmission rod and is fixedly connected to a gear (65), the gear (65) is meshingly connected to the rack (4), the inner top wall of the positioning groove (64) is fixedly connected to a positioning rod (66), the outer wall of the positioning rod (66) is rotatably connected to a pawl (68), the transmission rod is located on the outer wall of the positioning groove (64) and is fixedly connected to a ratchet (67), the ratchet (67) is meshingly connected to the pawl (68).

2. A limiting device according to claim 1, characterized in that: A shielding block (7) is fixedly connected to the inner side wall of the positioning groove (64), and a through hole matching the transmission rod is provided on the shielding block (7).

3. A limiting device according to claim 2, characterized in that: The inner side wall of the inclined groove (61) is fixedly connected with a guide rod (8), and one end of the guide rod (8) passes through the sliding block and is fixedly connected to the inner side wall of the inclined groove (61).

4. A limiting device according to claim 3, characterized in that: A guide groove is provided on the inner side wall of the through groove, a guide block is slidably connected in the guide groove, one end of the guide block extends out of the guide groove and is fixedly connected to a connecting block (9), and the top end of the connecting block (9) extends out of the through groove and is fixedly connected to the bottom of the clamping plate (3).

5. A limiting device according to claim 4, characterized in that: Universal wheels (10) are fixedly connected to the four sides of the bottom of the processing seat (1), and brake pads are arranged inside the universal wheels (10).

6. A limiting device according to claim 5, characterized in that: The bottom of the processing seat (1) is fixedly connected to a hydraulic telescopic rod (11), the output end of the hydraulic telescopic rod (11) is fixedly connected to a bottom plate, and the bottom of the bottom plate is provided with an anti-slip protrusion.

7. A limiting device according to claim 6, characterized in that: A sponge pad is provided on a side of the clamping plate (3) away from the cylinder (2), and a sponge pad is provided on a side of the auxiliary plate (63) away from the cylinder (2).

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