Tool clamp for machining belt pulley

Abstract

The utility model relates to the technical field of belt pulley processing, and discloses a work fixture for processing a belt pulley, which solves the problem that the belt pulley is instably clamped at present, and comprises a base, a rotating mechanism is arranged at the top of the base, a clamping mechanism is arranged on the rotating mechanism, and the clamping mechanism is arranged on the base. The clamping mechanism comprises a placing disc located over the base, a top block is fixedly installed at the top of the placing disc, and cross rods are fixedly connected to the outer side of the top block at equal angles; according to the belt pulley clamping device, through the cooperation between the screw rod and the threaded sleeve and the cooperation between the guide rod and the driving rod, all the sleeve plates can move conveniently, all the extrusion pads can be tightly attached to the inner wall of the belt pulley, the belt pulley can be clamped conveniently, and through the cooperation between the connecting rod and the movable rod and the cooperation between the bottom ring and the spring, the belt pulley can be clamped conveniently. And the two inserting rods can be inserted into the two inserting holes correspondingly, then the rotating disc can be fixed, the screw rod is prevented from rotating at will, and therefore the belt wheel is fixed more stably.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt pulley processing, in particular to a tooling fixture for processing a belt pulley. Background Art

[0002] Pulleys are common force and motion transmission parts, belonging to the hub type parts, generally with relatively large size. The manufacturing process is generally based on casting and forging, and different processing specifications and standards have been established. Moreover, during the processing of pulleys, except for non-standard pulleys, most pulleys need to be processed according to processing standards, so the processing fixtures of pulleys must meet certain standards; according to the patent document with the authorization announcement number: CN214237212U, entitled "A tooling fixture for the production of diesel engine pulleys", a fixing mechanism is set to set the pulley sleeve outside the fixing mechanism, and the rotation of the turntable can drive the bidirectional screw to rotate, so that the upper and lower movable seats move closer to each other, and the connecting rod can make the splint expand outward until the rubber pad on the splint fits tightly with the inner wall of the pulley, thereby fixing the pulley, and it can be used to fix pulleys of different radii; but the following defects still exist:

[0003] It rotates the turntable to drive the bidirectional screw to rotate, and then drives the two movable seats to approach each other to fix the pulley. Since there is no device to limit the turntable, the pulley vibrates during the processing, which easily causes the bidirectional screw to rotate in the opposite direction, making the clamping of the pulley unstable. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a tooling fixture for processing a pulley, which effectively solves the current problem of unstable clamping of the pulley.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tooling fixture for processing a pulley, comprising a base, a rotating mechanism is installed on the top of the base, and a clamping mechanism is installed on the rotating mechanism;

[0006] The clamping mechanism includes a placing plate located directly above the base, a top block is fixedly installed on the top of the placing plate, a cross bar is fixedly connected at an equal angle to the outside of the top block, a sleeve is movably sleeved on the outside of the cross bar, an extrusion pad is fixedly installed on the side of the sleeve away from the top block, a screw is rotatably connected to the top of the top block, a rotating plate is fixedly installed on the top of the screw, a bottom ring is provided directly below the rotating plate, two plug rods are symmetrically fixedly installed at the bottom of the bottom ring, two guide rods are symmetrically fixedly connected to the top of the top block, a top ring is fixedly connected between the top ends of the two guide rods, the bottom ring is located at the top of the top ring, and holes are provided at equal angles on the top of the top ring, the two plug rods are respectively inserted into the inside of the two sockets, a screw sleeve is threadedly sleeved on the outside of the screw, the screw sleeve is movably sleeved on the outside of the two guide rods, the outside of the screw sleeve is rotatably connected to a driving rod, and the bottom end of the driving rod is rotatably connected to the top of the sleeve.

[0007] Preferably, two movable rods are symmetrically fixedly connected to the top of the bottom ring, the top ends of the two movable rods pass through the rotating disk and are fixedly connected to the same connecting rod, and the two movable rods are movably connected to the rotating disk, and two springs are fixedly connected between the rotating disk and the bottom ring, and the two springs are movably mounted on the outside of the two movable rods.

[0008] Preferably, a slot is provided at the bottom of the connecting rod, and the top of the rotating disk is rotatably connected to a rotating rod, which is in a horizontal state.

[0009] Preferably, the rotating mechanism includes a motor fixed to the top of the base, a transmission shaft is fixedly mounted on the top of the motor, and the top end of the transmission shaft is fixed to the bottom of the placement plate.

[0010] Preferably, the bottom of the placement plate is fixedly connected with a support rod at an equal angle, and the bottom end of the support rod is fixedly connected with a support ring.

[0011] Preferably, a mounting ring is fixedly mounted on the top of the base, an annular groove is provided on the top of the mounting ring, balls are provided at equal angles inside the annular groove, and the bottom of the support ring is in contact with the balls.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model facilitates the movement of each sleeve plate through the cooperation between the screw rod and the screw sleeve and the guide rod and the driving rod, so that each extrusion pad is closely fitted with the inner wall of the pulley, which is convenient for clamping the pulley. The two insertion rods can be respectively inserted into the two insertion holes through the cooperation between the connecting rod and the movable rod and the bottom ring and the spring, and then the rotating disk can be fixed to prevent the screw rod from rotating arbitrarily, thereby making the pulley fixation more stable.

[0014] (2) The new type facilitates the rotation of the pulley through the cooperation between the motor, the transmission shaft and the placement disk, and facilitates the stable rotation of the pulley driven by the placement disk through the cooperation between the support rod, the support ring and the ball, thereby facilitating the rotation processing of the pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

[0017] Figure 1 This is a schematic diagram of the structure of a tooling fixture for processing a pulley according to the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the rotating disk of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the bottom ring and the top ring of the utility model;

[0021] Figure 5 This is a schematic diagram of the connecting rod structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the rotating mechanism structure of the utility model.

[0023] In the figure: 1. base; 2. clamping mechanism; 201. placement plate; 202. sleeve plate; 203. top block; 204. extrusion pad; 205. cross bar; 206. screw rod; 207. screw sleeve; 208. rotating disk; 209. guide rod; 2010. driving rod; 2011. connecting rod; 2012. rotating rod; 2013. movable rod; 2014. bottom ring; 2015. top ring; 2016. spring; 2017. socket; 2018. plug rod; 2019. slot; 3. rotating mechanism; 301. motor; 302. mounting ring; 303. support ring; 304. transmission shaft; 305. support rod; 306. annular groove; 307. ball. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Embodiment 1, by Figure 1 The utility model comprises a base 1 , a rotating mechanism 3 is installed on the top of the base 1 , and a clamping mechanism 2 is installed on the rotating mechanism 3 .

[0026] Specifically, by Figure 2-5 It is given that the clamping mechanism 2 includes a placing plate 201 located just above the base 1, a top block 203 is fixedly installed on the top of the placing plate 201, a cross bar 205 is fixedly connected to the outside of the top block 203 at an equal angle, a sleeve plate 202 is movably sleeved on the outside of the cross bar 205, a pressing pad 204 is fixedly installed on the side of the sleeve plate 202 away from the top block 203, a screw 206 is rotatably connected to the top of the top block 203, a rotating plate 208 is fixedly installed on the top of the screw 206, a bottom ring 2014 is provided just below the rotating plate 208, two insertion rods 2018 are symmetrically fixedly installed at the bottom of the bottom ring 2014, two guide rods 209 are symmetrically fixedly connected to the top of the top block 203, a top ring 2015 is fixedly connected between the top ends of the two guide rods 209, the bottom ring 2014 is located at the top of the top ring 2015, and holes 2017 are provided at equal angles on the top of the top ring 2015, and the two insertion rods 2018 are respectively inserted into the two Inside the jack 2017, the outer side of the screw rod 206 is threadedly sleeved with a screw sleeve 207, and the screw sleeve 207 is movably sleeved on the outer sides of the two guide rods 209. The outer side of the screw sleeve 207 is rotatably connected with a driving rod 2010, and the bottom end of the driving rod 2010 is rotatably connected to the top of the sleeve plate 202. The top of the bottom ring 2014 is symmetrically fixedly connected with two movable rods 2013, and the tops of the two movable rods 2013 all penetrate the rotating disk 208 and are fixedly connected with the same connecting rod 2011, and the two movable rods 2013 are movably connected with the rotating disk 208. Two springs 2016 are fixedly connected between the rotating disk 208 and the bottom ring 2014. The two springs 2016 are movably sleeved on the outer sides of the two movable rods 2013, respectively. A slot 2019 is provided at the bottom of the connecting rod 2011, and the top of the rotating disk 208 is rotatably connected with a rotating rod 2012, and the rotating rod 2012 is in a horizontal state;

[0027] When in use, first place the pulley on the top of the placing disk 201, and at the same time, each squeezing pad 204 is located on the inner side of the pulley, and then pull the connecting rod 2011 upwards, and drive the bottom ring 2014 to move upwards through the two movable rods 2013. At this time, the two springs 2016 are compressed until the two insertion rods 2018 are separated from the two corresponding insertion holes 2017 respectively. At this time, the limit of the rotating disk 208 is released, and then the rotating rod 2012 is rotated to a vertical state. At this time, the rotating rod 2012 is located directly below the slot 2019, and then the control of the connecting rod 2011 is released. At this time, the two springs 2016 are reset to drive the bottom ring 2014 to move downward, and drive the connecting rod 2011 to move downward through the two movable rods 2013 until the top of the rotating rod 2012 is inserted into the slot 2019, and the bottom ring 2014 is limited, and the two insertion rods 2018 are not inserted into the two corresponding holes 2017 , and then rotate the connecting rod 2011 to drive the rotation of the rotating disk 208 and the rotation of the screw rod 206. At this time, the screw sleeve 207 moves downward along the two guide rods 209, and then drives the movement of each sleeve plate 202 through each driving rod 2010. At the same time, each extrusion pad 204 moves until it is tightly fitted with the inner wall of the pulley to fix the pulley, and then pull the connecting rod 2011 upward again to drive the bottom ring 2014 to rise, so that the two springs 2016 are compressed until the rotating rod 2012 is separated from the slot 2019, and then rotate the rotating rod 2012 to a horizontal state, and release the control of the connecting rod 2011 again. At this time, the two springs 2016 reset and drive the bottom ring 2014 to move downward until the two insertion rods 2018 are respectively inserted into the two corresponding insertion holes 2017, fixing the rotating disk 208 to prevent the screw rod 206 from rotating arbitrarily, and finally achieving stable clamping of the pulley.

[0028] Specifically, by Figure 6 It is given that the rotating mechanism 3 includes a motor 301 fixed to the top of the base 1, a transmission shaft 304 is fixedly installed on the top of the motor 301, the top of the transmission shaft 304 is fixed to the bottom of the placement plate 201, a support rod 305 is fixedly connected to the bottom of the placement plate 201 at an equal angle, a support ring 303 is fixedly connected to the bottom end of the support rod 305, a mounting ring 302 is fixedly installed on the top of the base 1, an annular groove 306 is provided on the top of the mounting ring 302, and balls 307 are provided at equal angles inside the annular groove 306, and the bottom of the support ring 303 is in contact with the balls 307;

[0029] When in use, first start the motor 301 to drive the transmission shaft 304 to rotate, and at the same time the placement plate 201 drives the pulley to rotate. Since the support ring 303 rotates on each ball 307, the placement plate 201 is supported and limited, making the rotation of the placement plate 201 more stable, and finally realizing the rotation processing of the pulley.

Claims

1. A jig for machining a pulley, comprising a base (1), characterized in that: A rotating mechanism (3) is installed on the top of the base (1), and a clamping mechanism (2) is installed on the rotating mechanism (3); The clamping mechanism (2) comprises a placement plate (201) located directly above the base (1); a top block (203) is fixedly mounted on the top of the placement plate (201); a cross bar (205) is fixedly connected to the outside of the top block (203) at an equal angle; a sleeve plate (202) is movably sleeved on the outside of the cross bar (205); a compression pad (204) is fixedly mounted on the side of the sleeve plate (202) away from the top block (203); a screw rod (206) is rotatably connected to the top of the top block (203); a rotating plate (208) is fixedly mounted on the top of the screw rod (206); a bottom ring (2014) is provided directly below the rotating plate (208); two insertion rods (218) are symmetrically fixedly mounted on the bottom of the bottom ring (214); and a top ring (2014) is provided with a bottom ring (2014) and a bottom ring (2014) is provided with two insertion rods (218) at the bottom. Two guide rods (209) are symmetrically fixedly connected to the top of the block (203); a top ring (215) is fixedly connected between the top ends of the two guide rods (209); a bottom ring (214) is located at the top of the top ring (215); a plug hole (217) is provided at an equal angle on the top of the top ring (215); two plug rods (218) are respectively inserted into the inside of the two plug holes (217); a screw sleeve (207) is threadedly sleeved on the outer side of the screw rod (206); the screw sleeve (207) is movably sleeved on the outer sides of the two guide rods (209); a driving rod (210) is rotatably connected to the outer side of the screw sleeve (207) at an equal angle; and the bottom end of the driving rod (210) is rotatably connected to the top of the sleeve plate (202).

2. A jig for processing a pulley according to claim 1, characterized in that: Two movable rods (2013) are symmetrically fixedly connected to the top of the bottom ring (2014); the top ends of the two movable rods (2013) both penetrate the rotating disk (208) and are fixedly connected to the same connecting rod (211); the two movable rods (2013) are movably connected to the rotating disk (208); two springs (2016) are fixedly connected between the rotating disk (208) and the bottom ring (2014); the two springs (2016) are movably sleeved on the outsides of the two movable rods (2013), respectively.

3. A jig for processing a pulley according to claim 2, characterized in that: The bottom of the connecting rod (2011) is provided with a slot (219), and the top of the rotating disk (208) is rotatably connected to a rotating rod (212), and the rotating rod (2012) is in a horizontal state.

4. A jig for processing a pulley according to claim 1, characterized in that: The rotating mechanism (3) comprises a motor (301) fixed to the top of the base (1), a transmission shaft (304) is fixedly mounted on the top of the motor (301), and the top end of the transmission shaft (304) is fixed to the bottom of the placement plate (201).

5. A jig for processing a pulley according to claim 4, characterized in that: The bottom of the placement plate (201) is fixedly connected to a support rod (305) at an equal angle, and the bottom end of the support rod (305) is fixedly connected to a support ring (303).

6. A jig for processing a pulley according to claim 5, characterized in that: A mounting ring (302) is fixedly mounted on the top of the base (1); an annular groove (306) is provided on the top of the mounting ring (302); balls (307) are provided at equal angles inside the annular groove (306); and the bottom of the support ring (303) is in contact with the balls (307).

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