Fixture for grinding and processing surface of small gear

Abstract

The utility model relates to the technical field of gear machining, in particular to a clamp for polishing the surface of a small gear, which is characterized in that a positioning rod is arranged in the middle of a positioning plate, open grooves are formed in the front side and the rear side of the positioning rod, sliding grooves are symmetrically formed in the positioning plate in a penetrating manner, and the open grooves and the sliding grooves are arranged in a penetrating manner; the two abutting rods are movably arranged in the open grooves through adjusting assemblies, and the abutting rods are arranged in the sliding grooves in a sliding mode. The two connecting rods are fixedly arranged on the left side and the right side of the positioning plate correspondingly, and connecting grooves are formed in the connecting rods in a penetrating mode. The top end of a vertical rod of the positioning frame is connected with the end of the connecting rod, the left end and the right end of the two-way lead screw are screwed into the positioning frame through bearings, and the two-way lead screw is located below the positioning plate. The gear is conveniently limited to the connecting rod through the limiting effect of the positioning rod, then the gear is clamped and fixed to the connecting rod through cooperation with the effect of the two-way lead screw, and therefore surface grinding machining is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to a fixture for grinding the surface of a small gear. Background Art

[0002] In the existing surface grinding process of small gears, the gears are usually fixed on the operating table manually using a clamp, which makes the operation cumbersome. Therefore, there is an urgent need for a clamp for surface grinding of small gears to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology and provide a fixture for surface grinding of small gears, the technical features of which can solve the above problems.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] A positioning plate, wherein a positioning rod is provided in the middle of the positioning plate, and slots are provided on the front and rear sides of the positioning rod. Slide grooves are symmetrically provided on the positioning plate, and the slots and the slide grooves are connected;

[0006] There are two interference rods, which are movably arranged in the slots by means of an adjustment assembly, and the interference rods are slidably arranged in the slide grooves;

[0007] There are two connecting rods, which are fixed on the left and right sides of the positioning plate respectively, and a connecting groove is formed on the connecting rods;

[0008] A positioning frame, wherein the top end of the vertical rod of the positioning frame is connected to the end of the connecting rod, the left and right ends of the bidirectional screw rod are screwed into the positioning frame by bearings, and the bidirectional screw rod is located below the positioning plate, the motor is fixedly arranged on the left side of the positioning frame, the output end of the motor is connected to the end of the bidirectional screw rod, and the motor is connected to an external power supply;

[0009] Clamping rods, there are two clamping rods, the two clamping rods are slidably arranged in the connecting grooves, and the bottom ends of the clamping rods are screwed onto the bidirectional screw rods;

[0010] With the above design, the gear can be restricted on the connecting rod through the limiting effect of the positioning rod, and the clamping rod is driven to move by the bidirectional screw rod, thereby clamping and fixing the gear.

[0011] Furthermore, the adjustment component comprises:

[0012] There are two movable rods, each of which is movably inserted into the bottom end of the interference rod, and the bottom ends of the two movable rods are slidably set on the limit rod;

[0013] An electric push rod, wherein the electric push rod is fixedly arranged at the bottom end of the positioning rod, the output end of the electric push rod is connected to the limit rod, and the electric push rod is connected to an external power supply;

[0014] There are two adjusting rods, the top ends of the two adjusting rods are screwed into the slots using rotating rods, and the bottom ends of the adjusting rods are screwed onto the movable rod using hinged seats;

[0015] There are two guide rods, each of which is fixed in a chute and the abutment rod is movably sleeved on the guide rods.

[0016] With the above design, the electric push rod is used to drive the limit rod to move, the limit rod drives the movable rod to move, and the movable rod drives the adjustment rod to rotate, so that the interference rod can contact the inner wall of the gear, thereby limiting the position of the gear.

[0017] Furthermore, the top ends of the two clamping rods are connected with clamping blocks by means of bolts, and tooth grooves are provided on the side walls of the clamping blocks, so that different clamping blocks can be replaced according to the size of the gears, thereby clamping and fixing gears of different sizes.

[0018] Furthermore, the front and rear sides of the positioning plate are respectively provided with abutment plates to facilitate placing the gear on the connecting rod.

[0019] Furthermore, pads are provided on the top surfaces of the left and right sides of the positioning plate to facilitate adjustment of the height position of the gear so that the top end of the positioning rod is located inside the gear.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The limiting function of the positioning rod is used to limit the gear on the connecting rod, and the gear is clamped and fixed on the connecting rod with the help of the bidirectional screw, which makes it easier to polish the surface.

[0022] An adjustment component is set up, and an electric push rod is used to control the movement of the movable rod. In conjunction with the adjustment rod, the resistance rod is allowed to resist the inner wall of the gear, thereby restricting different gears on the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Figure 2 It is a structural schematic diagram of the positioning plate and the positioning rod in the utility model.

[0025] Figure 3 It is a structural diagram of the adjustment component in the utility model.

[0026] Figure 4 It is a structural diagram of the interference rod, the movable rod and the adjusting rod in the utility model.

[0027] Description of reference numerals:

[0028] Positioning plate 1, positioning rod 2, slot 3, slide 4, resistance rod 5, adjustment assembly 6, connecting rod 7, connecting slot 8, positioning frame 9, bidirectional screw 10, motor 11, clamping rod 12, movable rod 13, limit rod 14, electric push rod 15, adjustment rod 16, guide rod 17, clamping block 18, resistance plate 19, pad 20. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0030] like Figures 1-4 As shown, this specific embodiment adopts the following technical solution: it includes:

[0031] Positioning plate 1, a positioning rod 2 is provided in the middle of the positioning plate 1, and slots 3 are provided on the front and rear sides of the positioning rod 2. A slide groove 4 is symmetrically provided on the positioning plate 1, and the slot 3 and the slide groove 4 are provided through-set. The positioning plate 1 plays a positioning role. After the gear is sleeved on the positioning rod 2, the gear is placed on the connecting rod 7. The front and rear sides of the positioning plate 1 are respectively provided with a contact plate 19 to facilitate the placement of the gear on the connecting rod 7. Pads 20 are provided on the top surfaces of the left and right sides of the positioning plate 1 to facilitate the adjustment of the height position of the gear so that the top end of the positioning rod 2 is located inside the gear;

[0032] There are two interference rods 5, which are movably arranged in the slot 3 using the adjustment assembly 6, and the interference rods 5 are slidably arranged in the slide groove 4. The interference rods 5 are used to contact the inner wall of the gear to facilitate the fixing of the gear;

[0033] There are two connecting rods 7, which are fixed on the left and right sides of the positioning plate 1 respectively. A connecting groove 8 is formed through the connecting rod 7, and the connecting rod 7 plays a guiding role;

[0034] Positioning frame 9, the top of the vertical rod of the positioning frame 9 is connected to the end of the connecting rod 7, the left and right ends of the bidirectional screw rod 10 are screwed into the positioning frame 9 by bearings, and the bidirectional screw rod 10 is located below the positioning plate 1, and the motor 11 is fixedly arranged on the left side of the positioning frame 9, the output end of the motor 11 is connected to the end of the bidirectional screw rod 10, the motor 11 is connected to the external power supply, and the motor 11 is used to control the rotation of the bidirectional screw rod 10;

[0035] The clamping rod 12 is two, and the two clamping rods 12 are respectively slidably set in the connecting groove 8, and the bottom end of the clamping rod 12 is screwed on the bidirectional screw rod 10, and the bidirectional screw rod 10 drives the clamping rod 12 to move relative to each other, thereby clamping and fixing the gear. The top ends of the two clamping rods 12 are connected with a clamping block 18 by bolts, and the side walls of the clamping block 18 are provided with tooth grooves, which are convenient for replacing different clamping blocks 18 according to the size of the gear, thereby clamping and fixing gears of different sizes;

[0036] The adjustment component 6 comprises:

[0037] There are two movable rods 13, and the two movable rods 13 are respectively movably inserted into the bottom end of the interference rod 5. The bottom ends of the two movable rods 13 are respectively slidably set on the limit rod 14, and the movable rods 13 play a role of adjustment;

[0038] An electric push rod 15 is fixedly arranged at the bottom end of the positioning rod 2. The output end of the electric push rod 15 is connected to the limit rod 14. The electric push rod 15 is connected to an external power supply. The electric push rod 15 is used to control the height of the limit rod 14, and the limit rod 14 drives the movable rod 13 to move.

[0039] There are two adjusting rods 16, the top ends of the two adjusting rods 16 are screwed into the slot 3 using a rotating rod, and the bottom ends of the adjusting rods 16 are screwed onto the movable rod 13 using a hinge seat. The rotation of the adjusting rods 16 facilitates the sliding of the interference rod 5 in the slide groove 4.

[0040] There are two guide rods 17 , which are fixedly arranged in the slide groove 4 respectively, and the resistance rod 5 is movably sleeved on the guide rods 17 , and the guide rods 17 play a guiding role.

[0041] When using the present utility model, the operator first sets the gear movable sleeve on the positioning rod 2 and starts the electric push rod 15. The electric push rod 15 drives the limit rod 14 to move, and the limit rod 14 drives the two movable rods 13 to move synchronously. The movable rod 13 drives the adjusting rod 16 to rotate, and the adjusting rod 16 pushes the contact rod 5 to move in the slide groove 4 along the direction of the guide rod 17 until the contact rod 5 contacts the inner wall of the gear, thereby restricting the gear to the positioning plate 1, and then fixes the appropriate clamping block 18 to the top end of the clamping rod 12 with bolts according to the tooth groove on the gear, and then starts the motor 11. The motor 11 drives the bidirectional screw rod 10 to rotate, and the bidirectional screw rod 10 drives the clamping rod 12 to move, so that the clamping rod 12 drives the clamping block 18 to move along the direction of the connecting groove 8 until the tooth groove on the clamping block 18 engages with the gear, thereby clamping the gear.

[0042] Compared with the prior art, the beneficial effects of the present invention are:

[0043] 1. The limiting function of the positioning rod 2 is used to limit the gear on the connecting rod 7. The gear is then clamped and fixed on the connecting rod 7 with the help of the bidirectional screw 10, thereby facilitating surface grinding.

[0044] 2. Set up the adjustment component 6, use the electric push rod 15 to control the movement of the movable rod 13, and cooperate with the adjustment rod 16 to facilitate the interference rod 5 to interfere with the inner wall of the gear, thereby restricting different gears on the connecting rod 7.

[0045] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A fixture for grinding the surface of a small gear, characterized in that: It contains: A positioning plate (1), wherein a positioning rod (2) is provided in the middle of the positioning plate (1), slots (3) are provided on the front and rear sides of the positioning rod (2), and sliding grooves (4) are symmetrically provided on the positioning plate (1), and the slots (3) and the sliding grooves (4) are provided in a continuous manner; The resisting rod (5) is two in number, and the two resisting rods (5) are movably arranged in the slot (3) by means of an adjustment assembly (6), and the resisting rod (5) is slidably arranged in the slide groove (4); Connecting rods (7), there are two connecting rods (7), the two connecting rods (7) are fixedly arranged on the left and right sides of the positioning plate (1), and a connecting groove (8) is formed through the connecting rods (7); A positioning frame (9), wherein the top end of the vertical rod of the positioning frame (9) is connected to the end of the connecting rod (7), the left and right ends of the bidirectional screw rod (10) are screwed into the positioning frame (9) by means of bearings, and the bidirectional screw rod (10) is located below the positioning plate (1), and the motor (11) is fixedly arranged on the left side of the positioning frame (9), the output end of the motor (11) is connected to the end of the bidirectional screw rod (10), and the motor (11) is connected to an external power supply; The clamping rod (12) is provided in two pieces. The two clamping rods (12) are respectively slidably arranged in the connecting groove (8), and the bottom ends of the clamping rods (12) are screwed onto the bidirectional screw rod (10) through threads.

2. The fixture for grinding the surface of a small gear according to claim 1, characterized in that: The regulating component (6) comprises: There are two movable rods (13), and the two movable rods (13) are respectively movably inserted into the bottom ends of the abutting rods (5), and the bottom ends of the two movable rods (13) are respectively slidably arranged on the limiting rods (14); An electric push rod (15), wherein the electric push rod (15) is fixedly arranged at the bottom end of the positioning rod (2), the output end of the electric push rod (15) is connected to the limit rod (14), and the electric push rod (15) is connected to an external power supply; Adjustment rods (16), there are two adjustment rods (16), the top ends of the two adjustment rods (16) are screwed into the slots (3) using rotating rods, and the bottom ends of the adjustment rods (16) are screwed onto the movable rod (13) using hinged seats; The guide rods (17) are two in number. The two guide rods (17) are respectively fixedly arranged in the slide groove (4), and the resistance rod (5) is movably sleeved on the guide rods (17).

3. The fixture for grinding the surface of a small gear according to claim 1, characterized in that: The top ends of the two clamping rods (12) are connected to clamping blocks (18) by means of bolts, and tooth grooves are provided on the side walls of the clamping blocks (18).

4. The fixture for grinding the surface of a small gear according to claim 1, characterized in that: The front and rear sides of the positioning plate (1) are respectively provided with contact plates (19).

5. The fixture for grinding the surface of a small gear according to claim 1, characterized in that: Pads (20) are provided on the top surfaces of the left and right sides of the positioning plate (1).

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